please note :1,items need 2 AA Battery(must brand new),2, please make sure you install the battery in right direction   the two batteries must  in different polars directions,3,Turn the base to make it work after installationProperty:Sex ToysSize:L8.6" Max D 2.4" Tip D 1.3"Battery Type: 2AA not includedColor:Pink, PurpleFunction:Multi-speed vibratingMaterial:Eco-friendly medical grade TPE, ABS