Furniture leg levelers, also called glides, are pieces of a furniture base fitted to the legs to protect the floor and the furniture. These glides also help to reduce sliding noise, slippage, and furniture misuse. , provide you with an easy way to keep the surface of your table or couch level and to prevent it from wobbling. They also keep wood chair, table and cabinet legs from sliding across the floor or damaging it. They are made from various materials including soft plastic, nylon, or coated with rubber. Nylon is arguably one of the most popular furniture glide options due to its strength, durability, and universal flooring applications. They work on almost all types of floors. However, one notable exception to their high quality is that nylon furniture glides collect dirt, sand, and other particulates over time. It can also eventually damage softer floor types, like wood or tile. The most common levelers are steel reinforced pads attached to threaded stems that screw into a T-nut that you install in holes drilled into the bottom end of the legs. The installation process is simple: Turn the piece of furniture to which you want to add levelers upside down so you have access to the bottoms of the legs, place the end of the threaded post of a furniture leveler against the bottom of the leg, center it and trace its outline. You’ll need to draw diagonal lines to confirm the true center of the leg so that you can drill a hole large enough for the T-nut that the stem threads into. If you purchased Tech Team’s #746 Furniture Glide and Leveler Set https://techteamproducts.com/product/replacement-floor-glide-set-4-pieces-00746/ https://www.amazon.com/dp/B07CVP83MZ?ref=myi_title_dp (watch the video) https://youtu.be/3mHvsitluaM , the T-nuts are included in the set. Now insert a drill bit into a drill that has the same diameter as the outside perimeter of the round base of the T-nut. Measure the length of the base and mark this length on the bit by wrapping electrical tape around it. The distance from the edge of the tape to the end of the bit should be the same as the length of the base plus 3mm. Now measure the length of the threaded stem so that you know how deep to drill the hole for the stem’s travel. Now measure the diameter of the stem (usually 8mm) and add 2mm to arrive at the drill bit diameter for the hole for the stem and drill through the center of the bottom of the T-nut hole to the depth equal to the length of the stem. You now have a hole that has a larger diameter at the top and a narrower one at the bottom. In both cases the holes must be perpendicular to the face of the bottom of the leg and parallel to its long axis. Insert the base of the T-nut into the hole and tap it with a hammer (wear eye protection while doing this). This will force the pins on its flange into the wood to secure it. Stop tapping when the flange is flush with the wood. Screw the threaded stem into the T-nut and tighten it until the desired height is achieved then tighten the hex nut against the T-nut to lock it in place. Install all the levelers in the same manner.