7 pleasure rhythms and flexible silicone shaft for g-spot stimulation. Made using phthalate free, non-toxic materials Silicone. Battery operated sex toy requires 3 AAA batteries, not included. Do not leave batteries in the vibrator between uses. A water based lubricant is recommended. Waterproof vibrations for play in and out of the water. Vibrator measures 8.75 inches long, can be safely inserted 6 inches. Maximum diameter 1.5 inches to a minimum diameter of 1 inch. Bulk weight 5 ounces. Package weight 7 ounces. Package dimension: Long 4.5 inches, Wide 2 inches, Height 12.25 inches. Always clean before and after use.