Aqua Leisure FF-6915 E is a great fitness equipment for children ages 4 and up. It is not intended for children weighing less than 80 lbs (36 kg). It consists of a base assembly, front and rear swing arm assemblies, and foot platforms. The user stands on the foot platforms and holds onto the foam handles, then moves their arms back and forth to propel themselves forward. The Air Walker can help children develop their coordination, balance, and cardiovascular fitness.