Swim Research Swim Training Kickboard - Swimming Pool Equipment Foam Kick Board by (Junior & Adult Sizing) Durable and designed with rounded edges for a comfortable grip Contoured bottom to fit comfortably against the body For kicking drills and all types of aquatic exercises 100% high-density, closed cell EVA foam Available sizes: Adult (17.5 x 11.5 x 1.25 inches), Junior (14 x 10 x 1.25 inches)