[Special Use]: Effective auxiliary swimming training device, suitable for swimmers with limited finger control and strength, ideal for beginners. Environmentally friendly material: Made of EVA material, odorless, environmentally friendly and lightweight. [Focus on Details]: High-quality buckle, comfortable to wear. Ergonomic design: One-piece shape designed to match ergonomic principles, enhancing comfort and effectiveness during swimming training. [Application Scenarios]: Suitable for use in swimming pools, at the beach, or in hot springs. Product Product Name: Buoyancy Aid Size: 17x17x10cm Inner Diameter: 7cm Weight: 0.11kg Material: EVA Color: Blue Package Includes: 2 x Swim Cuffs Features: 1. Lightweight, odorless, and waterproof 2. Designed with ergonomic principles for comfort and performance 3. Made from high-quality materials 4. Offers two different usage options for versatile training 5. Features a secure and buckle (corrected to: Features a secure and refined buckle) Warning: 1. Due to differences in monitor settings and lighting conditions, the actual color may vary slightly from the image. Slight measurement deviations may occur due to manual measurement. 2. Swimming cuffs should be kept away from direct sunlight and stored in a cool place when not in use. 3. Children must swim under adult supervision to prevent accidents.