Adjustable Furniture Levelers, smooth base can protect the floor from scratches, and at the same time, it allows you to easily adjust and fix the height of the table and chair, so that the table and chair can be placed smoothly on the flat floor or uneven, tilted floor. Prevents furniture from scratching or damaging floors made of tile, laminate, ceramic, carpet and more. Screw Diameter 8/10/12/16/20/24mm Bolt Length 40-100mmBase Diameter 40/50/60/70/80/90/100mm Adjustable Height 40-100mm Load Capacity: 50KG-2000KG How to Use: Step 1: Pre-drilling, drill a hole with tools. Step 2: Screw in the insert nut with hex tools. (Tip: While inserting the nut, you can clamp it with vise to effectively reduce cracking.) Step 3: Screw the adjustable foot pad into the nut and adjust to the desired height. Repeat the above steps to install all the supporting feet. Package Include: 4pcs Adjustable Furniture Leveler ♦ Tips: 1. We are manually measuring, there may be an error of 1-3mm, please prevail in kind. 2. Due to the different understanding of the spotlight and the color of different people, some color differences may occur, but within a reasonable range, please choose carefully. 3. Delivery time is usually 15-25 days. If you have not received the purchased product within 30 days, please contact us in time, we will try our best to solve it for you. 4. If you are not satisfied with the product, please contact us and we will be happy to help you. If you are satisfied with our products, please remember to give us 5 stars.