Item Type: Dive Rings Material: Plastic Product Color: Orange / Yellow / Blue / Green Inner Diameter: Approx. 113mm / 4.4in Product Weight: Approx. 210g / 7.4oz Package List 4 x Dive Rings 1. It is not recommended for children under 6 years of age to use it alone. If it is used, it needs to be carried out under the supervision of an adult.2. Please allow 1& 8209;2cm error due to manual measurement. Thanks for your understanding.3. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1Made of durable and non-toxic plastic, the diving ring is very strong and corrosion resistant. 2With smooth edge design, there is no need to worry about hurting children's small hands. 3The diving ring can quickly sink into the water and can stand upright on the bottom of the pool. The bright color makes it easy to see underwater, so it can be picked up easily. 4It is a good training tool that encourages children to swim and enhance their confidence in underwater diving. It can help learn swimming and diving skills faster. 5Diving and retrieving, simply and effectively improve swimming skills. For beginners, this is a good motivation.