Feature: 1. The product is thick, soft and durable. It is made of high quality rain grade material. 2. Matte finish with quick valve. Specification: Product material: PVC S: 2-4 years old, before inflation; OD 53-55cm/20.87-21.65in, ID 18cm/7.09in M: 5-9 years old, before inflation; 63-65cm/24.8-25.59in outer diameter, 21cm/8.27in inner diameter L: 9-14 years old, Before Inflation; 73-75cm/28.74-29.53in Outer Diameter, 25cm/9.84in Inner Diameter XL: 14+ years old, Before Inflation; 82-84cm/32.28-30.07in Outer Diameter, 29cm/11.41in Inner Diameter Package includes： 1*Swimming ring Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color which is showed on the pictures. 2. Please forgive 1 cm/0.39"-3 cm/1.18" measuring deviation due to manual measurement.