Product Name: High-quality EVA material swimming auxiliary swimming back float 5 board size: 150mm*70mm*225mm Dimensions: length 150mm* width 70mm* height 45mm Total belt length: 95cm Weight: 90g Material: EVA Color: blue yellow Quantity: 1pcs Package includes: 1*buoyancy board Scope of application: 1. Swimming pool; 2. Beach; 3. Swimming training class; 4. Athlete sports assistance; 5. Used for student training. Note: Due to different measurement methods and tools, there may be errors in the measurement results, please refer to the actual product. Five panels of closed-cell foam on the adjustable waistband with quick-release buckles. Provides a level of support and safety for timid adult swimmers or new swimmers. Lightweight flotation belt, less fatigue for swimmers It can be worn on the front or behind the waist. The biggest benefit is the ability to add blocks in front of the body (or where the body needs them) for better balance and support for good posture. Also used by people learning to swim as foam blocks can be added or removed from the belt when needed. This belt measures 95cm from buckle tip to buckle tip.