Suitable Crowd-Recommended for ages 3-7 months old,weight 11-24 lbs (size S); ages 5-18 months old, weight 13-38 lbs (size L), ages 1.5-6 years old, weight 28-48 lbs (size XL), Or you can contact us, we will recommend the size for your baby. Design-Our baby swimming float provide an ideal swimming posture for babies, let the baby easy to learn kick and swim in a horizontal position (Instead of vertical ).Raised front and Widen sides:to prevent flipping,Soft bottom support to avoid baby slide out. Portable-Easy to inflate and deflate. pack-and-go portability and storage. Great pool float for travel New Version-Perfect for Swimming pool,Bathtub,Beach and we also offer baby pool float with canopy,please check the NEW Version. Attention-Each product is detected by gas.Pay attention to inflatable do not charge too full(80%-90% of inflating is enough),If you have quality problems, please contact us