Little Bluey Fans Will Be Calm And Comfy In These Contoured, Colourful Inflatable Armbands As They Learn To Paddle, Splash And Swim – Just Like The Big Kids! Bluey X Wahu Small Arm Bands Are Suitable For Ages From 0 To 2 Years Or Under 15Kgs. Bluey X Wahu Large Arm Bands Are Suitable For Ages From 1 To 4 Years Or 15Kg To 25Kg. Bluey X Wahu Armbands Feature Contoured Shape For Extra Comfort, Scratch-Free Pvc, Dual Air Chambers For Extra Security Compared To A Single Chamber Aid, Plus Non-Return Safety Valves.