The classic Jelly Caribbean series enters the new age with the Crystal Caribbean series. The same great shapes and soft jelly material that you know and love, with a new 10-function controller that will have you reach new levels of ecstasy. Easy to use push button controls at your fingertips, will have choosing between pulsating, surging and the ultimate roller coaster spurt. Waterproof for fun in and out of the water. Insertable length of 8 in. and a maximum diameter of 1.875 in. Uses 2 AA batteries, not included.