Train like an American Ninja Warrior with this awesome 9-inch red cannon ball! It's a killer grip trainer that builds forearm and upper body strength by forcing your hand into an open grip position. Made in the USA from tough, skin-friendly polyurethane resin with a texture that feels like real rock. Includes a stainless steel eye bolt for hanging from a pull-up bar, ceiling mount, or climbing wall. Perfect for home gyms, garages, or obstacle course training. It's the same type of hold used on the show! Whether you're a climber, ninja enthusiast, or just want stronger grip, this ball will challenge you. Fun and effective.
