Suitable for Kids 3~24months.Fits for Children weight from 13 to 40 lbs. Adjustable buckle at the back to suit most infant sizes. This is very easy to Adjust. Unfasten safety clip and easily slip on. You can tighten up as necessary to avoid any slipping. Helps move freely in a comfortable position.2 Swim WaysUpgraded into 2 swim ways which are backstroke and breaststroke with different buckle method. Backstroke Suitable for 3~6months baby, breaststroke Suitable for 3~24months baby.Professional Breaststroke 40°When the baby is lying on the swim float, being able to maintain the post of breaststroke all the time, cultivate your baby's correct swimming posture.Upgraded 5 Points Protection, Safe & StableThe Non-inflatable MamboBaby Swim Ring Float vest-type close-fitting design, wider straps are more comfortable, strengthens the position of the squat and supports the abdomen to prevent it from falling backward or flipping.UPF 50+ sunscreen removable canopyMambobaby Swim Float comes with a removable canopy. The removable assemble UV-PROOF canopy sun canopy covered with UPF 50+ sunscreen coating protects baby’s skin away from the sun. Make baby enjoy the swimming fun in summer. Add removable tailAdd removable tail, Prevent baby from flipping backward. Upgraded safety buckle, The Upgraded safety buckle provides 5 support points and a perfect 40°angle to keep a balance to avoid baby flip over and fall off. WARNING! The buoyant tail must be installed during the entire process of using the float, and the backstroke position can only be used for babies less than 6 months. Pool floats are not a substitute for swimming lessons or life vests. DO USE IT UNDER THE ADULT'S CONSTANT SUPERVISION. NEVER LEAVE A CHILD IN A POOL FLOAT WITHOUT SUPERVISION.