Sprint Triangle Ring Special Needs Cp Aquatic Therapy Inflatabletube Pool New Child Kids Only Inflatable Swim Ring for Swimming Pool. Children will enjoy this inflatable pool tube. It's a fun toy and useful swimming starter kit. A novel way to use the inflatable upright float for swimmers with pretty good head and neck support, but limited arm and leg use is, see the thumbnail images for more detail. Inflatable ring with a triangular shape that offers more support for the swimmer around shoulders and neck. The pillow section of the float works well in keeping the swimmers face out of the water Inner circumference: 25". This size float is suitable for swimmers aged 5 to 12 years