--- product_id: 341562684 title: "Mr. Pen- Professional Geometry Set, 7 pcs | Metal Compasses with Center Wheel & Extension Leg, Precision Drafting Kit with Storage Box for Geometry, Technical Drawing" brand: "mr. pen" price: "R541" currency: ZAR in_stock: true category: "Mr. Pen" url: https://www.desertcart.co.za/products/341562684-mr-pen-professional-geometry-set-7-pcs-metal-compasses-center store_origin: ZA region: South Africa --- # 20-inch max circle diameter 7-piece reusable storage kit spring bowhead & center wheel precision Mr. Pen- Professional Geometry Set, 7 pcs | Metal Compasses with Center Wheel & Extension Leg, Precision Drafting Kit with Storage Box for Geometry, Technical Drawing **Brand:** mr. pen **Price:** R541 **Availability:** ✅ In Stock ## Summary > 🖊️ Master your craft with precision and style—because your ideas deserve the best. ## Quick Answers - **What is this?** Mr. Pen- Professional Geometry Set, 7 pcs | Metal Compasses with Center Wheel & Extension Leg, Precision Drafting Kit with Storage Box for Geometry, Technical Drawing by mr. pen - **How much does it cost?** R541 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/341562684-mr-pen-professional-geometry-set-7-pcs-metal-compasses-center) ## Best For - mr. pen enthusiasts ## Why This Product - Trusted mr. pen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Expand Your Radius:** Create circles up to a massive 20 inches—ideal for technical drawings and bold artistic projects. - • **Precision Perfected:** Spring bowhead and center wheel lock for zero slip and flawless circles every time. - • **Carry with Confidence:** Clear, reusable storage box keeps your tools organized and ready for on-the-go creativity. - • **Multi-Tool Slip Handle:** Adaptable grip fits pens, pencils, stylus, or markers for ultimate drafting flexibility. - • **Versatile Drafting Power:** Includes 2 professional compasses plus extension beam and interchangeable attachments for all your geometry and art needs. ## Overview The Mr. Pen Professional Geometry Set is a 7-piece metal drafting kit featuring two high-quality compasses, an extension beam, interchangeable attachments, and a slip handle compatible with various writing tools. Designed for precision with a spring bowhead and center wheel, it enables drawing circles up to 20 inches in diameter. Packaged in a clear, reusable box, this set is perfect for professionals and creatives seeking reliable, portable geometry tools. ## Description desertcart.com : Mr. Pen- Professional Geometry Set, 7 pcs | Metal Compasses with Center Wheel & Extension Leg, Precision Drafting Kit with Storage Box for Geometry, Technical Drawing : Office Products ## Features - The package includes 2 high-quality professional compasses, an extension beam, interchangeable attachments and a slip handle for pens, pencils, stylus or markers. - Great for math, geometry, art, drafting, and drawing, creates circles up to 20 inches in diameter - Precision geometry compass with spring bowhead and center wheel prevents unintentional leg movements - Packaged in a clear, reusable box. Easy to carry and store ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08WX2S3XP | | Art Craft Kit Type | Drawing | | Best Sellers Rank | #28,215 in Office Products ( See Top 100 in Office Products ) #19 in Drafting Compasses | | Brand | Mr. Pen | | Brand Name | Mr. Pen | | Customer Reviews | 4.5 out of 5 stars 1,204 Reviews | | Included Components | 2 high-quality professional compasses, extension beam, interchangeable attachments, slip handle, clear reusable box Included Components 2 high-quality professional compasses, extension beam, interchangeable attachments, slip handle, clear reusable box See more | | Manufacturer | Mr. Pen | | Manufacturer Part Number | GE01 | | Material | Metal | | Material Type | Metal | | Model Number | GE01 | | Number of Pieces | 7 | | Product Style | 7 pcs Geometry Tool Set | | Set Name | 7 pcs Geometry Tool Set | | Size | 20 inches | | Style | 7 pcs Geometry Tool Set | | UPC | 810053332382 | ## Images ![Mr. Pen- Professional Geometry Set, 7 pcs | Metal Compasses with Center Wheel & Extension Leg, Precision Drafting Kit with Storage Box for Geometry, Technical Drawing - Image 1](https://m.media-amazon.com/images/I/81gFn-7b+GL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: What is the maximum diameter? The description says 18" while the video says 24"** A: With the "extender leg" attached I am able to open the compass to a diameter of 11.5". I don't see how you could expand it to 18" or 24". **Q: Can you use this with other drawing utensils like markers?** A: Yes you can use markers and pens and pencils. Built in there is a lead, but there's an attachment that lets you use any kind of writing pen/marker/pencil that is up to 1/2 in diameter. **Q: What is the diameter of the lead? I need more than the standard black lead. Most compass's are 2mm>** A: This is also 2mm. Make one, there's plenty of cool compass plans available online. That's what I did for my trammel points (beam compass) **Q: Does the small compass use the same 2 mm replacement leads?** A: Yes ## Frequently Bought Together - Mr. Pen- Professional Geometry Set Metal Compass, 7 pcs, Geometry Precision Tool Set with Shatterproof Storage Box, Drafting Tools & Drafting Kits, Circle Drawing Tools for Engineers Students - Nicpro 6PCS Art Mechanical Pencil Set, 3PCS Metal Drafting Pencil 0.5 mm & 0.7 mm & 0.9 mm & 3PCS 2mm Graphite Lead Holder (2B HB 2H) For Writing, Sketching Drawing With Lead Refills Case - Architectural Scale Ruler, 12" Aluminum Architect Scale, Triangular Ruler for Blueprint, Triangle Drafting Metal Architecture --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/341562684-mr-pen-professional-geometry-set-7-pcs-metal-compasses-center](https://www.desertcart.co.za/products/341562684-mr-pen-professional-geometry-set-7-pcs-metal-compasses-center) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-07-22*