Zoggs Matrix Hand Paddles are designed to improve your stroke technique. They force your hand to stay straight as you pull through the water. They are ergonomically contoured in design for optimum performance. Feature a scooped front-end to catch the phase of your stroke with added holes to increase your feel of the water. As well as improving stroke performance, hand paddles can help to build strength in arms and shoulders. The soft TPR (Thermoplastic Rubber) outer edge allows for flexibility in the finger tips for added comfort.