Easy to Learn and Beginners Back Float: Provides good flotation support to easily increase body buoyancy Put it on the back and help beginners maintain balance It's easier to learn to swim by moving your arms around and around the pool yourselfCOMFORT AND SAFETY: Back Float feature snap closure, very easy to adjust Easily snaps on the back and releases arms for proper position and movement Free movement instead of bulky arm floats Requires adult companionship Recommended for your child's safetyCONVENIENT AND ADJUSTABLE: With 4 adjustable layers, adjust buoyancy by adding or removing layers. Starting with 4 layers, you can remove individual foam layers Four floating discs, which can be removed one by one to change the number of pads and adjust buoyancy to help increase strength Lengthen the strap to help increase endurance. When more confident with the water, take them awaySMOOTH AND WATERPROOF - Rear floating swim belt made of soft and durable waterproof Eva foam that won't chip or absorb water Lovely color and smooth touch avoid skin chafingAlso a lot less than a life jacket vest, and the portable size is also great to fit in a suitcaseProduct name: swimming training back float productSpecifications: Universal for children and adultsModel: Small floating backsize: S 22.3x18x7.8cm Material:EVAcolour:As ShownPackage Contents:1 x Pull the buoyOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.