The age group is 3 years and above. Bestway swim ring these 24 inch swim rings from Bestway are manufactured from sturdy pre-tested vinyl. They measure 61cm (24 inch inch) and with a safety valve on the air chamber. These are a great way to have fun and to build water confidence in the 3 to 6 years age group range. 3 Assorted colours 1 will be supplied. Warning: -inflatable children's armbands are not life preservers and should only be used under competent supervision. Supervisors should be in the water within an arms distance of the person wearing the devices.