Slackers Ninja Ball with Hardware (2 Piece), Red/Blue, 2.5";

Train like a warrior! Our b4Adventure NinjaLine Ninja Balls are one of the top training devices for building forearms and grip strength. The smaller size is perfect for beginner level and small hands. Our set includes: hanging strap to allow full shoulder rotation, a two piece poly resin ball kit, 2.5" round textured balls with hanging steel bolts, and a triangular safety carabiner. 7.5" x 1" polyester webbing sling. Perfect for use on our b4Adventure NinjaLine Intro or Pro Combo Kit (sold separately).