Swimline Aqua Coach Swimmies make learning to swim fun and safe. Proper inflation only takes seconds. Dual air chambers on each band provide ample room for proper flotation. Just slip an inflatable band over each arm, adjust to above the elbow and watch your child take to the water with confidence. Make learning to swim a fun experience. Made with high-quality vinyl with radio frequency (RF) welded seam construction for maximum durability and easy inflate valves that will get the youngster in the water faster.