PTFE glides are designed for moving furniture with ease. They are suitable for furnitures such as sofa, desk, chair, bed etc. You can move furnitures easily even if heavy items. furniture gliders can prevent floors from scratching and reduces noise when move your furnitures around the room. 't worry about damaging your expensive furniture and carpet. These furniture sliders are made of durable PTFE material , which can make for periods of time. Size: Screw Deep: 13mm Base Size: 30 x 30mm Type: Square with Screw Installation Guides Step 1: Use a tape to measure and the depth you need to drill. : Use a drill bit to drill a hole according to the tape deep. Step 3: Put a onto the furniture leg and drill the screw. Step 4: Stand the furniture to check the stability and to . Colour: black + blue gray Material: PTFE Package Contents: 24 x Furniture Glide Pads Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store