b4Adventure NinjaLine Ninja Cone with Hardware (2 Piece), Red/Blue, 4" Poly Resin Top training for building forearms and pinch grip strength Two piece cone kit includes: poly resin sphere-textured 4" x 2.5" cones with hanging steel bolts, triangle safety carabiner, and 6" x 1" polyester webbing sling B4Adventure NinjaLine Premium Accessory Ages 5+; Max weight 250 lbs Endorsed by "The Ninja" Brian Arnold