The quick-change discs, also known as Lockit® or Roloc® discs, feature a threaded button attachment. This threaded button fits into the holder's attachment system. These discs fit all Lockit® and Roloc® holders. A simple twist through 180 degrees releases the disc. Lockit® or Roloc® is a unique quick-change system. The system can be adapted to suit specific applications by choosing from the range of quick-change back-up pads which are available in different hardnesses. As a manufacturer of these quick-change discs we can offer you a very extensive range of different qualities and types, even if you only require relatively small quantities.