Keep leg floating: Pull buoy help develop upper body strength by floating your legs; you just need to keep the EVA pull buoy in your thighs and the swimming pull buoy provides the foot buoyancy without kicking. Swimming Kickboard can enhance upper body strength and allows the swimmer to on stroke technique and rotation.Elevates hips and legs to the proper streamline body position Good swimming aids: this swimming training pull buoy has a simple design, reasonable structure, strong buoyancy, and good touch; It can exercise good swimming styles, suitable for assisted swimming FOR ALIGNING YOUR BODY from head to toe The Pull Buoy is perfect for and improving symmetry when you swim. Simply place the Pull Buoy in between your thighs to secure use a Pulling Leg Strap to secure your feet together if you have trouble keeping the buoy in place. Wide range of application: the foam pull is a nice training tool for swimmers of all levels, the foam pull buoy is fixed between the legs to help swimmers practice leg movements, and can exercise the waist and abdomen muscles through leg exercises to enhance upper body strength