Material: PC Dimensions: 13.5 x 20 cm Suitable occasion: indoor swimming pool and outdoor water training for different swimming styles. Suggested population: Most people, adults, children, women, men, boys, and girls. Package List 1 Pair of Swimming Hand Paddles Due to the lighting effects and shooting angles, there is a color difference in the product, please understand.Due to manual measurement, there is a tolerance in the product size. 11. Ergonomic Design - The middle part of the paddle is slightly raised to fit the palm better. Non-slip design, some parts are frosted to increase grip. This handcrafted paddle will be your perfect swimming companion It will improve your swimming skills. 22. Strength Training - This swimming training aid increases resistance, these hands have holes of different sizes and shapes in different parts, it also reduces some water resistance, so it helps build muscles safely and strengthens your back, chest, shoulder, and arm muscles. Increase swimming speed. This is a great swimming accessory. 33. Adjustable Straps - Adjustable straps make this paddle suitable for different hand sizes and secure fit. Suitable for most people, adults, children, women, men, boys, and girls. 44. High-Quality Material - Our swimming paddles are made of high-quality plastic, comfortable and lightweight, easy to carry. Suitable for swimming, diving, snorkeling, etc. 55. Ideal Gift - The perfect gift for family and friends, swimmers, beginners, and experienced swimmers. Size: 13.5 x 20 cm, suitable for indoor swimming pools and outdoor water training for different swimming styles.