There are many different mounting options and applications for these slides. I used the 60” slides to install a sliding cargo shelf in RV pass thru storage. Measure all the gaps carefully to ensure clean installation.CAUTION: be careful of locking mechanism when installing. There are several moving latches and fixed “tabs” in the rail and they can be bent or damaged when installing in specialized applications.Simple testing of locking mechanism (both lock-in and lock-out) during all phases of installation will usually ensure its working properly. I had a slightly bent tab on the “lock-in” position that rendered the lock useless. I corrected by slightly bending the tab back so that locking position could be maintained.