Speedo Swimming Unisex Kick Board With Grip Holes For Kick Technique Nail your kick technique and build leg strength. Ideal for technique sessions, the Kickboard puts the focus on your lower body, providing buoyancy so you can focus on perfecting the kick phase of your stroke. Without your arms for assistance, the lower body has to work harder to propel you through the water, which helps build leg strength and muscular endurance. Contoured for comfort, the kickboard includes grip holes for a comfy swim experience. Grip holes increase grip Contoured for extra comfort Kick technique - increasing buoyancy isolates your lower body, leaving you free to focus on your kick technique. Leg strength - Kickboards allow you to build up leg muscle and strength, by forcing your lower body to do all of the hard work.