Doc Johnson - Vac U Lock Vibrating Dual Density Ultraskyn Starter Set Vanilla | 7 - 6 & 5.5 inchesYour perfect strap on experience is on lock with Doc Johnsons deluxe line of full service Vac U Lock Deluxe Sets. The Vac U Lock Dual Density ULTRASKYN Set is a solid investment for upgrading or beginning your strap on accessories collection, offering multiple options in one box via a complete harness with removable O rings, a 7 function rechargeable vibrating Vac U Plug with remote, three ULTRASKYN attachments, and a bottle of Mood water based lube.