Material: PVC. Suitable for babies aged 0-6, 12-22kg. After pumping, the outer diameter is about 57cm and the inner diameter is about 17cm. Anti-back backrest design. Product list: color box * 1, swimming ring * 1, repair subsidy * 1, air pump * 1, pump * 1. Baby-Safety Material -- The toddler pool floats are made of durable leak-proof environmental PVC material, making it 100% safe and non-toxic, friendly to baby's skin. Multi Safety Protection -- Thicken and lengthen seat cushion and backrest design to ensure baby's safety and comfort. Its dual inflatable chambers and pillow backrest protect the baby's belly and deliver extra stability and avoid forward overturning, flipping over, or sliding out, safety is always the first. Transparent Edge Ring Design -- See-through visibility is designed to help babies and parents interact and enjoy pool time. Easy to inflate and deflate folds, portable to carry and store. Perfect for outdoor pool, beach, indoor bathtub, or anywhere water fun. Nice Gift Choice -- Packaged by beautiful colorful box, provide 1x manual pump for easy inflation. Do not charge too full(80%-90% of inflating is enough). If you have any problems with this baby pool floatie, please feel free to contact us.