The Sex Machine Adapter is a high quality, affordable sex tool. It is electronic polished for a super smooth surface. It fits for standard Vac-U-Lock dildos, so you are not tied down to one particular toy. you can choose any size dildo to lock it on your sex machine. It can be connected with a anus or vagina dildo at the same time. so if you want to try a backyard sex and vagina sex with you machine at the same time, do not hesitate to get one, you won't be disappointed. NOTE: This adapter is not including any dildos, the dildos on picture for reference only, beside, this adapter will not work with the non-standard Vac-U-Lock dildo. PACKAGE INCLUDING: 1 x Hismith Dildo Double Adapter For Vac-U-Lock Dildo | 1 x Hexagon wrench (For you to adjust the gap between the hard locks).