Zoggs Flat Hand Paddles are designed to enhance swimming technique and provide an effective workout. These hand paddles are perfect for competitive swimmers looking to improve their stroke efficiency and arm strength, while also adding variety to their training sessions. Ergonomic design ensures a comfortable fit in any hand position Durable polypropylene material resists chlorine for long-lasting use Adjustable elastomer tubing straps for a secure fit Rinse with clear water after use Dimensions S/M: 17 x 14,5 cm M/L: 21 x 18 cm L/XL: 24 x 20 cm Materials Material 1: 95% polypropylene Material 2: 5% elastomer