Get your hand-eye coordination and punch pace up to SPEED. This authentic cowhide leather speed ball is built for your champion aspirations. Crafted by the hand, these high-quality speed bags are also hand-stitched for pro level results and career-lasting durability. A high-end rubber bladder inside is easy to fill without spilling air in any way or form. A foam layered inner offers a wall of shock-absorbency on the inside. All this translates to a piece of gym equipment that is bound to last session upon session. This set comes with a high-grade, rust proofed swivel that can easily attached to a platform, roof, or ceiling.