--- product_id: 1733132 title: "Captains of Crush (CoC) Key Grip Strengthening Tool" brand: "ironmind" price: "R550" currency: ZAR in_stock: true reviews_count: 8 category: "Iron Mind" url: https://www.desertcart.co.za/products/1733132-captains-of-crush-coc-key-grip-strengthening-tool store_origin: ZA region: South Africa --- # Precision gap measurement in mm Specifically designed for CoC grippers Made in USA, premium quality Captains of Crush (CoC) Key Grip Strengthening Tool **Brand:** ironmind **Price:** R550 **Availability:** ✅ In Stock ## Summary > 📏 Unlock your grip’s full potential—measure, master, and dominate! ## Quick Answers - **What is this?** Captains of Crush (CoC) Key Grip Strengthening Tool by ironmind - **How much does it cost?** R550 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/1733132-captains-of-crush-coc-key-grip-strengthening-tool) ## Best For - ironmind enthusiasts ## Why This Product - Trusted ironmind brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Grip GPS:** Know exactly where you stand on your grip journey and close the gap with confidence. - • **Proudly American-Made:** Built in the USA by IronMind, the gold standard in grip training since 1988. - • **Turn Misses into Wins:** Transform partial closes into actionable feedback and accelerate your grip gains. - • **Pinpoint Your Progress:** Track grip strength improvements down to 2 mm increments for laser-focused training. - • **Engineered for Champions:** Crafted from aircraft-grade aluminum to perfectly fit Captains of Crush grippers. ## Overview The Captains of Crush Key is a precision gap measurement tool designed exclusively for CoC grippers. Made from aircraft-grade aluminum in the USA, it provides incremental feedback from 2 to 54 mm, enabling athletes to track and accelerate their grip strength progress with unmatched accuracy. ## Description Product description Turn Misses into Hits with the CoC Key — it transforms a gap into meaningful feedback to fuel your gains With its steps of 2, 4, 6, 8, 10, 12, 14, and 16 mm, as well as 19 and 54 mm measurements, no longer will your gripper training be flying blind; now you can zero in on just how deep you are driving the gripper handles . . . were you really 2 mm short of victory or was that wishful thinking? To understand how the CoC Key works, consider how the Captain of Crush training system divides your grippers into three categories warm-up gripper: it's easy to close, but this is what primes you for the hard work ahead. working gripper: you can only close it for a few reps or so, but this is where you make progress, getting stronger in return for the effort you put into these reps. challenge gripper: even after your best effort, there's still some daylight in between the handles, and Joe Kinney (the first man certified on the Captains of Crush No. 4 Gripper) would say that training on your challenge griper is where you make your best gains, if you do things right. The CoC Key from IronMind Tap, tap is the sound you want to hear as the aircraft-grade aluminum handles of your Captains of Crush Gripper connect. GPS for your grip training--know where you are and you'll reach your goal faster Designed specifically for use with a set of Captains of Crush Grippers (sold separately). Helps athletes to “gauge the gap” and track their progress by precise increments as they move toward a new grip strength goal. Overall length 2-1/8" Made in the USA by IronMind, grip central since 1988 ## Features - Takes the guesswork out of your grip training - Hit pay dirt even when you can't fully close your grippers - Progressively close the gap until you can touch the handles - Specifically designed for Captains of Crush Grippers - Precision quality, made in the USA ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001NFYTVW | | Best Sellers Rank | #196,684 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #451 in Strength Training Grip Strengtheners | | Brand | IronMind | | Brand Name | IronMind | | Color | Silver | | Customer Reviews | 4.4 out of 5 stars 56 Reviews | | Item Dimensions L x W | 2.13"L x 2.13"W | | Item Shape | Cylinder | | Manufacturer | IronMind Enterprises, Inc. | | Material | Aluminum | | Model Number | 1440 | | Part Number | 1440 | | Product Dimensions | 2.13"L x 2.13"W | | Style | gap measurement tool for grippers | | Tension Level | Heavy | | Tension Supported | Heavy | | UPC | 696747096972 | | Unit Count | 1 Count | ## Product Details - **Brand:** IronMind - **Color:** Silver - **Material:** Aluminum - **Style:** gap measurement tool for grippers - **Tension Level:** Heavy ## Images ![Captains of Crush (CoC) Key Grip Strengthening Tool - Image 1](https://m.media-amazon.com/images/I/71GHQdnXXLL.jpg) ## Questions & Answers **Q: What is the purpose of this?** A: The purpose is for grip training with Captains of Crush (CoC) grippers. It takes the guesswork out of grip training. You can see a diagram and get more info here: https://www.amazon.com/dp/B001NFYTVW/ ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by J***T on September 21, 2024* ### ⭐⭐⭐⭐ Review *by M***Y on October 11, 2023* ### ⭐⭐⭐⭐⭐ Review *by T***R on September 7, 2023* ## Frequently Bought Together - Captains of Crush (CoC) Key: The Key to Building a Stronger Grip - IronMind Captains of Crush (COC) Hand Gripper - The Gold Standard of Grippers | The World's Leading Hand Strengthener - IronMind Expand-Your-Hand Bands 10 Pack: Kiss Elbow Pains Goodbye - Prevent, Rehab, Reduce Pain from Tennis Elbow, Carpal Tunnel. Authentic, original, effective --- ## 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/1733132-captains-of-crush-coc-key-grip-strengthening-tool](https://www.desertcart.co.za/products/1733132-captains-of-crush-coc-key-grip-strengthening-tool) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-07-05*