Aqua Leisure Water Muscles Aqua Leisure Water Muscles can help kids learn and swim with better confidence in water. These floating muscles can easily fit in children"s arms while they are in water to provide them with necessary support. Each float features two air chambers and non-slip inner surface for added safety. Why You"ll Love It: They are made of heavy gauge vinyl with no-leak valve to promote confidence in kids. Age: 3 to 6 years FeaturesMade of heavy gauge vinylFeatures non-slip inner surfaceHas two air chambers