Advanced pitching and throwing development tool designed to enhance arm flexibility, strength, and endurance while reducing injury risk. Features five precision-calibrated resistance bands (10-30LB) with maximum 100LB combined resistance for customized progression from beginner to elite levels. Constructed with premium 50+ latex thread core and high-density textile outer layer for exceptional durability during intensive training. Includes secure D-ring door anchor system for versatile workout locations, complete with portable storage solution containing all accessories: bat attachment, ankle supports, grips, and mounting hardware. Backed by professional medical consultation team with 24-hour support and satisfaction guarantee.