1. Composed of TPR, PP paddles and silicone bands, it is adjustable and comfortable. 2. It is durable and flexible, and can significantly improve swimming speed. 3. The material combination and hole design are hydrodynamically optimized. It perfectly reduces water resistance and ensures better performance. 4. The ergonomically designed shape fits your hand shape perfectly. There are 2 different sizes available, suitable for most people. 5. It helps to release more arm strength when swimming. 6. It makes swimming more labor - saving. 7. The flexible body provides maximum comfort and is very suitable for swimming, diving, snorkeling, etc. 8. Specifications: - Condition: 100% brand - new high - quality materials - Materials: PP + TPR - Colors: blue, yellow (optional) - Sizes: S, L (optional) - S: about 190 x 130 mm / 7.5 x 5.1 inches - L: about 222 x 152 mm / 8.7 x 5.9 inches - Weight: about 157 - 216 grams 9. Package includes: 1 pair of swim fins