MaterialSwim Circle is made of elastic PU, which is lightweight, strong, and comfortable to touch.FunctionThe Underarm Swimming Circle allows the baby to lie on his stomach or stand on the water, support his head, kick his legs, or lie on his back to relax and play.UsageSwimming Pool Toy provides stability and prevents tipping over, providing your children play. The children's pool float circle is equipped with a double buckle lock. This swimming circle can prevent accidental falling off during use.FeaturesThe Water Toy shoulder straps, waist belts, and crotch straps are balanced, stable, and wide, allowing children to easily put them in, which is comfortable and convenient.ApplicableSuitable for homes, swimming pools, outdoor pools, beaches, etc. Specification: Material: Elastic PU Size Chart: Bust less than or equal to54cm/21.26inch Package Includes: 1x Underarm Swimming Circle Note: 1. This is not an infant toy, please take it away from children to avoid eating.2. Please allow slight errors of 1-2cm differences due to manual measurement.