Neoprene Magnetic Wrist Band Genesis Neoprene Power Band is an ultra-lightweight, durable magnetic aid providing complete unrestricted, flexible support. Helps to relieve tendonitis pain and prevent carpal tunnel syndrome while keeping your wrist therapeutically warm. Easy to use strap features a velcro tension adjustment to fit most bowlers. Features and Benefits: Embroidered Genesis Logo. Hook and Looptension adjustment. Lightweight, stretchy neoprene material. Increases circulation and rejuvenates cells. Helps balance the nervous system. Sizes: Medium or Large