Our Alloy Steel Wrist Force Gyroscopic Ball is a compact, deceptively powerful fitness and wellness tool that builds grip strength, relieves wrist and forearm fatigue, and delivers a surprisingly effective full-body tension release — all from the palm of your hand. The spinning gyroscopic mechanism generates progressively increasing resistance the faster it rotates — challenging and strengthening the wrist, forearm, and finger muscles with every session while simultaneously massaging the palm and relieving the deep-seated tension that builds up from typing, training, and daily repetitive use. Built from premium alloy steel for lasting durability and compact enough to use anywhere, this is the one desk, gym bag, and recovery essential that does far more than it looks.