The Chrome Zero Lift Rim Cylinder is part of UAP's group of super smooth cylinders using the Chris Belcher designed anti-bump timing pin system. This very clever system uses nickel plated hardened steel key pins and driver pins, which gives the anti-drill feature we wanted to incorporate. The Patented timing pins are designed to interrupt the timing of the pins when bumped, and it is highly effective. And because we use special pins rather than trap pins, we do not have a high expense to get this anti-bump feature! The timing pins have inbuilt anti-picks, and mushroom driver pins, which makes them highly effective against picking. What makes the UAP rim cylinder unique is the fact we have the facility to key alike the Rim Cylinder to our Kinetica 3* Kitemarked euro cylinders and our UAP 1* Kitemarked euro cylinders which is a huge benefit!. Supplied with 3 keys Anti-bump, anti-drill and anti-pick Has 6 pins Has 3 anti-pick pins 4 hardened steel anti-pick pins 70mm rim cylinder Can be keyed alike or mastersuited to Kinetica 3* cylinders and UAP 1* cylinders Unrestricted keyway We did not just want to launch something that was the same as what is currently in the market. Instead we sat back, asked a lot of questions and sampled a lot of products. And now we believe we have one the best rim cylinders on the market!