Eyech Adjustable M6 Furniture Levelling Foot Kit Say bye-bye to wobbly furniture problems! How to Install Just drill a 15/64 inch(6mm) hole at each corner (pro tips: wrap a piece of tape around the drill bit to act as a depth gauge), tap in the T-nuts with a hammer, and screw in the levelers, you could adjust the height you need. Product description - You could put them on tables, stools, grandfather clocks, wood cabinet or any furniture that needs leveling. - Plastic transparent round base design will do no harm and scratches to your floors, can be used as replacement feet or install in wood furniture leg. -Adjustable thread furniture levelling foot, can be adjusted the height of funiture, effective solution for your annoying uneven furniture and floor. -These Furniture Glide Levellers are suitable for office desk, restaurant furniture, conference room tables, display racks, chair, sofa, cabinet and other household furniture. Note: T-nuts are not included in this item. Specification: Thread screw Diameter: 6mm Thread screw Length: appr.26.5mm Base diameter: appr.24mm Base Height: appr.8mm Package Included: 20 M6 Furniture levelers