The Remote Control Flying Shark swim through the air with incredibly smooth and life-like motion. These flying shark provides hours of remote control indoor fun in even the smallest of rooms. Simply fill your Air Swimmers with helium inexpensively at any store with helium. The body is made from a high quality, durable nylon material that will stay inflated for weeks. You can fill it again and again. Shark Measures 57 x 36 inches.