IronMind Captains of Crush Captains of Crush Grippers: designed and built for performance.

If you had to pick just one grip strength tool, this is it
Captains of Crush Grippers: The gold standard of grippers
Original, authentic, unmatched??the gold standard for building and testing grip strength. Designed to produce the quickest gains in grip strength. Premium materials, proprietary elements, precision manufacturing and unrivaled customer support. Available in 11 strengths for a perfect fit, whether you are just starting off, rehabilitating an injury, or can already crack coconuts with your bare hands.

Captains of Crush (CoC?) grippers changed the gripper world, taking what had been a cheap, imported plaything and turning it into a beautifully designed and crafted training tool for serious strength athletes. Made in the USA and known worldwide, nothing else puts power in the palm of your hand like a Captains of Crush gripper.

Knurled aircraft-grade aluminum handles, pioneered by CoC grippers in 1995
GR8? springs found only on CoC grippers and IMTUGs: accurate, precise, durable
Precision manufacturing, world-class performance, feel, and appearance