Slide-All Sliders help move large furniture and equipment easily, protect carpet and flooring and keep furniture joints from loosening. They are specially formulated reusable sliding disks with a non-skid foam backing. Placed under heavy furniture and equipment, like sofas, file cabinets, bookcases, fitness equipment, and factory equipment, Slide-All Sliders help move large items and helps prevent them from falling over while moving. Slide-All Sliders make it possible for one person to move things that might normally require two or three people. Rearranging lay-outs for fitness centers, offices or factories is easy and fast with Slide-All Sliders. 4 per pack