For the Ultimate Sensation:!!! Insert the vibrating bullet into the hole in the bottom of the sleeve. Cleaning Instructions: Remove the sleeve from the can and clean thoroughly. Length: 6.5 in. - ( 165 mm ) Width: 2.8 in. - ( 71 mm ) Inner Diameter: 1.5 in. - ( 38 mm ) Anal Insertable Length: 5 in. - ( 127 mm ) Weight: 11.3 oz. ( 320.34 grams )