--- product_id: 48493824 title: "Skinny Top Heavy Bottom Slinky Cobalt 7-String Electric Guitar Strings - 10-62 Gauge" brand: "ernie ball" price: "R863" currency: ZAR in_stock: true reviews_count: 13 category: "Ernie Ball" url: https://www.desertcart.co.za/products/48493824-skinny-top-heavy-bottom-slinky-cobalt-7-string-electric-guitar store_origin: ZA region: South Africa --- # Cobalt alloy for max output 7-string versatility Made in USA quality Skinny Top Heavy Bottom Slinky Cobalt 7-String Electric Guitar Strings - 10-62 Gauge **Brand:** ernie ball **Price:** R863 **Availability:** βœ… In Stock ## Summary > 🎢 Elevate your 7-string game with the power of cobalt – sound that commands attention! ## Quick Answers - **What is this?** Skinny Top Heavy Bottom Slinky Cobalt 7-String Electric Guitar Strings - 10-62 Gauge by ernie ball - **How much does it cost?** R863 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/48493824-skinny-top-heavy-bottom-slinky-cobalt-7-string-electric-guitar) ## Best For - ernie ball enthusiasts ## Why This Product - Trusted ernie ball brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Trusted Legacy:** Crafted by Ernie Ball, the choice of legendary guitarists since 1962. - β€’ **Tailored Gauge Set:** Skinny top and heavy bottom (10-62) for perfect balance and drop tuning flexibility. - β€’ **Extended Dynamic Range:** Experience crisp highs, strong lows, and harmonic clarity that elevate your sound. - β€’ **Unmatched Magnetic Power:** Cobalt alloy boosts pickup response for richer tone and higher output. - β€’ **Durability Meets Playability:** Robust cobalt strings resist wear while offering a silky smooth bending feel. ## Overview Ernie Ball Skinny Top Heavy Bottom Slinky Cobalt 7-String Electric Guitar Strings feature a cutting-edge cobalt alloy that enhances magnetic pickup interaction, delivering superior output, dynamic range, and tonal clarity. Designed with a 10-62 gauge for versatile playability and durability, these uncoated strings are made in the USA and trusted by iconic musicians worldwide. ## Description Buy Ernie Ball Skinny Top Heavy Bottom Slinky Cobalt 7-String Electric Guitar Strings - 10-62 Gauge. Free delivery and returns on eligible orders. Review: Wow! - What a set of strings! Playability is top notch and sound is crisp and clear. Taken my 7 string to the next level Review: Amazing - My purpose for these strings was to drop my thick E string to an A (Drop-A). With the regular strings the E string is very loose and sounds awful so after looking into the matter i found these and they are perfect. The tone is amazing, there are 7 strings for use with a 7 string guitar but you can use just 6 strings on a regular guitar and just not use the 0.42 string. Strings: 62=E/A 42=A 30=D 17=G 13=b 10=e ## Features - Cobalt produces a stronger magnetic relationship between pickups and strings than any other alloy previously available. - Cobalt 7-string electric guitar strings provide an extended dynamic range, incredible harmonic response, strong low end, and crisp, clear highs. - Wound strings consist of Ernie Ball’s Cobalt alloy wrapped around a tin-plated high-carbon steel core wire. - Engineered to maximize output and clarity. - Made in the USA. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B009XNP2NA | | Best Sellers Rank | 5,697 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 263 in Guitar Strings | | Body Material Type | Cobalt | | Brand | Ernie Ball | | Brand Name | Ernie Ball | | Coating Description | uncoated | | Coating description | uncoated | | Colour | Skinny Top Heavy Bottom (10-62) | | Country of Origin | USA | | Customer Reviews | 4.7 out of 5 stars 1,263 Reviews | | Finish Type | Uncoated | | Global Trade Identification Number | 00749699127307, 00749699227304 | | Instrument | Electric Guitar | | Item Type Name | Electric Strings | | Item Weight | 0.1 Pounds | | Manufacturer | Ernie Ball | | Manufacturer Part Number | P02730 | | Material Type | Cobalt | | Model Name | Slinky | | Model Number | P02730 | | Number of Items | 1 | | Product Warranty | None. | | Recommended Uses For Product | Guitar | | Set Name | Skinny Top Heavy Bottom Slinky Cobalt 7-String | | String Gauge | .010, .013, .017, .030, .042, .052, .062 | | String Material Type | Cobalt | | String gauge | .010, .013, .017, .030, .042, .052, .062 | | String material type | Cobalt | | UPC | 749699127307 749699227304 | ## Product Details - **Brand:** Ernie Ball - **Colour:** Skinny Top Heavy Bottom (10-62) - **Instrument:** Electric Guitar - **String gauge:** .010, .013, .017, .030, .042, .052, .062 - **String material type:** Cobalt ## Images ![Skinny Top Heavy Bottom Slinky Cobalt 7-String Electric Guitar Strings - 10-62 Gauge - Image 1](https://m.media-amazon.com/images/I/815VVdeXe8L.jpg) ![Skinny Top Heavy Bottom Slinky Cobalt 7-String Electric Guitar Strings - 10-62 Gauge - Image 2](https://m.media-amazon.com/images/I/61XXFXXxoaL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: How often to change the strings?** A: Havent used Ernie Ball strings for years but the only Cobalt pack I ever bought lasted two weeks at most with regular playing. They rusted badly very quickly. The sound is also quite abrasive by design and were too tight for my liking. But then they are meant for an aggressive attack if that is the sound you are after. **Q: Are these suitable for B standard and Drop A tuning?** A: Yeah man, perfect to go down to Drop G as well **Q: Will these go to drop A tuning?** A: Yes, but as usual expect s slightly looser tension in the string. Buy yeah they're great for drop A, I use them exclusively in drop A ## Customer Reviews ### ⭐⭐⭐⭐⭐ Wow! *by A***D on 8 February 2024* What a set of strings! Playability is top notch and sound is crisp and clear. Taken my 7 string to the next level ### ⭐⭐⭐⭐⭐ Amazing *by R***E on 1 September 2013* My purpose for these strings was to drop my thick E string to an A (Drop-A). With the regular strings the E string is very loose and sounds awful so after looking into the matter i found these and they are perfect. The tone is amazing, there are 7 strings for use with a 7 string guitar but you can use just 6 strings on a regular guitar and just not use the 0.42 string. Strings: 62=E/A 42=A 30=D 17=G 13=b 10=e ### ⭐⭐⭐⭐⭐ Get these if you have a 7 string *by S***N on 19 February 2020* More and more I've recently been gettings severely miffed with my entry level LTD 7 string, even to the point of thinking about selling it. The low B was too floppy and a nightmare to tune and the whole guitar sounded dull. This was a last ditch attempt to make me like the 7 string, so I chose this set, being heavy at the bottom end and the same gauge as my 6 string at the top. They've made the whole guitar sound like a different instrument entirely. No more floppiness on the low B, tuning stability vastly improved and everything feels far more tight and precise. Not sure how people who prefer a light gauge would find the lower end strings, but being a bass player as well, it wasn't a problem for me. Sticking with these strings from now on. ## Frequently Bought Together - Ernie Ball 7-String Skinny Top Heavy Bottom Slinky Cobalt Electric Guitar Strings, 10-62 Gauge (P02730) - Ernie Ball Skinny Top Heavy Bottom Slinky Cobalt Electric Guitar Strings, 10-52 Gauge (P02715) - Ernie Ball Skinny Top Heavy Bottom Slinky Nickel Wound Electric Guitar Strings 3-pack, 10-52 Gauge (P03215) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/48493824-skinny-top-heavy-bottom-slinky-cobalt-7-string-electric-guitar](https://www.desertcart.co.za/products/48493824-skinny-top-heavy-bottom-slinky-cobalt-7-string-electric-guitar) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-09-12*