1、Ergonomic shape fits the contour of the hand well to reduce fatigue and follow the theory of nature mechanics to increase swimming speed and ensure flexible movement 2、Multiple holes allow water to pass through to reduce resistance and increase power on all swim strokes 3、Adjustable strap can fix middle finger and wrist well to provide great stability for palms during swimming, which is suitable for most people 4、Ideal for training and improving swimming techniques for beginner and athlete 5、Perfect training aid for professional swimmer who wants to maintain and correct freestyle stoke mechanics Description: This pair of hand paddles is designed for professional swimmer or swimming beginner. Are you tired of swimming with multiple paddle sizes for specific stroke techniques and benefits? Now you can meet all your training needs with this pair of hand paddles. Ergonomic contour improves the catch, pull and feel for each stroke technique and keeps hand in place to promote proper hand positioning. Adjustable strap is designed for secure and comfortable fit. Multiple water channel holes can retain the feel of the water. Features: PVC material is durable, waterproof and comfortable to wear. Ergonomic shape fits the contour of the hand well to reduce fatigue and follow the theory of nature mechanics to increase swimming speed and ensure flexible movement. Multiple holes allow water to pass through to reduce resistance and increase power on all swim strokes. Adjustable strap can fix middle finger and wrist well to provide great stability for palms during swimming, which is suitable for most people. Ideal for training and improving swimming techniques for beginner and athlete. Perfect training aid for professional swimmer who wants to maintain and correct freestyle stoke mechanics. Specifications: Material: PVC Color: Blue Quantity: 1 Pair / Set Package Weight: 107-148g Type: Fins Optional Sizes: S, M, L Size Length Suitable For S 17.5cm / 6.9inch Child M 19.5cm / 7.7inch Child L 21.5cm / 8.5inch Adult Package Includes: 1 x Pair of Hand Paddles