Swim Training Paddles/Hand Paddle, Freehawk&reg; Water Resistance Contoured Swimming Training Aid Power Paddles Large Flat Paddle Hand Fins for Men Woman Boys Girls Kids Youth Adult Children Ultimate training paddle for the professional swimmer and swimming learner. Ergonomic design to reduce shoulder strain,improve your power and skill. Material :PP+TPR+Silicone strap Contour shape keeps thumbs in place which make sure proper hand positioning, with comfortable traps for secure, comfortable fit. Dual density construction for better grip and comfort. Silicone hand strap for micro adjustment.Entry / Exit holes for the perfect feel of the water. Soft edges for safety. Dramatically improve your speed, make your friends jealous. Swim Training Paddles is especially designed for freestyle, backstroke, breaststroke and butterfly Swimming. Size Suggestion: L:(22CM*15CM) for Adult and bigger hand Younger/S:(19CM*13CM) for Children and smaller hand Younger.