Review on Blum Coated Extension Slides: Enhanced Closing Mechanism for Industrial Drawer Hardware by Aaron Collins

They do not come with back mounting hardware. If you are mounting to the base/bottom of the cabinet you will likely need to attach them via 1x1s/1x2s. We ordered a rear mount (available from another seller which was pretty odd). When the rear mount didn't arrive within a few days of the slides, we opted for the floor mount. Slides currently work well with an open oak drawer full of 30-40# glass lids (now you know why we need a drawer!)