Vac-U-Lock technology is some of the most user friendly and well thought out in the entire adult industry! Each piece has been designed to work in the ever-expanding Vac-U-Lock system, meaning the products work better together! It’s as easy as 1,2,3! 1. Get a COMPLETE SET to get started.. then 2. add in another attachment.. and then.. 3. add your own accessories! The possibilities are endless.. and once you’ve decided to take a chance on Vac-U-Lock, your fine will increase with every new item you add to your sexy collection! Go on! Take the plunge today right here at Naughty Boy!