The TheraBand Hand Exerciser is a soft rubber squeeze ball used in hand, finger, and forearm rehabilitation to restore grip strength, dexterity, and range of motion following injury. Available in multiple resistance levels — from Extra Soft (Yellow) through to Extra Firm (Black) — it allows progressive loading through a full squeezing motion with consistent resistance throughout the range. For climbers, it is a useful early-stage rehabilitation tool for finger and pulley injuries, returning grip function after periods of immobilization, and addressing forearm weakness during recovery. It can also be heated or cooled for use alongside hot and cold therapy protocols.