The Fukuoku Massage Glove is a neat massaging device. It has 5 powerful fingertip massagers in one glove. It is waterproof so it can be used underwater. Incorporates Dual-Speed Controls. Has up to 45,000 vibrations per minute. Finger massagers allow for pinpoint accuracy. Uses 3 AAA batteries, which are included and is hand washable with soap and water. Made of lycra material which makes it a one size fits all.