Check the listing for details. M8 Leveling Feet 30 x 30mm Square Insert Adjustable Furniture Glide 8 Sets. Color: 8 Sets, Condition: New. Listed at 16.09 USD. Features:1. The length of the screw can be adjusted according to the needs during the use. You can use these leveling feet to install your product feet.2. They are particularly suitable for the product that is swaying during the use due to rough floors or bad leg of the product. It does not harm the floor and without noise during the use due to the plastic base.3. It can protect your furniture, beautiful hardwood, ceramic tile and linoleum floors from marring and scratches. And the plastic base can keep them from sitting on the moist floor and it will not leave rust rings anymore all over your ground.4. The adjustable leveling foot and insert set is for office or household furniture even industrial machine with threaded sockets.5.