Ironmind Captains of Crush Hand Grippers
The Captains of Crush gripper is considered the gold standard of grip strengtheners by their own admission. This may look like a simple device but there are many intricacies to take into account like the knurling on the handles which help to maintain a solid grip even with sweaty hands. The knurling can be a little rough on the palms but it is nothing that a few calluses won't take care of.
The combination of knurling and the size of the handles work your grip without putting too much stress on the wrist or joints. The handles are made from high grade aluminum for strength and weight while the spring is made from durable alloy steel for longevity. The Captains of Crush hand strengtheners is offered in 11 different circular spring resistance levels to perfectly match your needs.