GREAT TRAINING TOOL: Help develop upper body strength by suspending and floating your legs and correcting your swim posture. PRINCIPLE: By immobilizing the legs and mentally focusing on proper hip rotation generated by the core. EASY TO USE: Simply place the pull buoy in between your thighs to use a pulling leg strap to your feet if you have keeping the buoy in place. VERSATILE: Pull buoy is a product designed with portability, ergonomics and easy storage in mind. HIGH QUALITY: foam material, -friendly Soft Strong and durable, Does not chafe or irritate . Main Material: Color: pink-white Size: . 24x12.5x8cm Package Including: 1 x Float Board Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.