Design mimics large hand for optimal performance.water holes to create smooth and controlled strokes.hydrodynamic shape with easily adjustable silicone straps.it helps enhance swimming skills and speed.these paddles reduce resistance.1 pair swimming hand paddles.ergonomic design: 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: multiple holes allow water to pass through to reduce resistance and increase power on all swim strokes.adjustable: adjustable strap can fix middle finger and wrist well to provide great stability for palms during swimming, which is suitable for most people wild application: ideal for training and improving swimming techniques for beginner and athlete.great tools: perfect training aid for professional swimmers who wants to maintain and correct freestyle stroke mechanics