Powerful male stroker features 7 functions of intense non-jamming rotation. Totally self-contained, with wireless design and push button control with LED light. Textured chamber for added sensations, and removable and replaceable sleeve for easy cleaning or independent use. Overall, stroker measures 11 in. by 2.75 in. Sleeve measures 4.5 in. by 2.5 in. Requires 4 AAA batteries, not included.