Features: Made of high performance EVA foam, with good buoyancy. Bubble belt includes 4 colored split layers, which allow you to add or reduce the layers to increase/decrease the buoyancy. Adjustable belt provides a customized fit for different waist sizes and ensure safety during swimming. Hydrodynamic design of kickboard makes it easy to move through the water. Perfect for developing your kid's motor skills and confidence in the pool, under adult's supervision. Specifications: Material: EVA foam Kickboard Color: Orange&Yellow / Purple&Yellow / Green&Yellow / Blue&Green / Green&Pink (optional) Kickboard Size: 40 * 29.5 * 4.1cm / 15.7 * 11.6 * 1.6in Back Float Size: 20.5 * 16.5 * 7.5cm / 8.1 * 6.5 * 3in Total Weight: 265g / 9.3oz Package List: 1 * Swimming Back Float 1 * Kickboard