Baby Pool Swimming Floats - Inner Diameter: 8.6in. Outside diameter: 20in. Inflatable, non-slip, safe, and secure swimming ring. Neck Float for Toddler - The round design allows the baby to balance in the water and enjoy the fun of the water list. Have fun with water and train baby swimming in the pool or bathtub. Safe Material - Environmental material PVC, Suitable for the age of 6-12 Months Baby. Mainly to see the thigh circumference (please measure the thigh circumference when purchasing). Note - Non-lifesaving supplies, should be used under the supervision of adults in a Shallow Water area. All PVC products need to be added with plasticizing stabilizer (oily) during production. A thin oil film will form on the surface when it is ejected from the mold, which may have a little peculiar smell. Please wash it with a non-irritating detergent before use and give it to the baby after ventilation Use (*^__^*).