Furniture Leveler Thread Diameter: 6mm; Thread Height: 15mm; Base Diameter: 28mm; Overall Height : 27mm What You Get: 30 Pieces Furniture Leveling Legs with plastic round base design, useful tools for home, office and garage, etc. Adjustable thread design, can be adjusted the height of funiture up to 1 inch, effective solution for your annoying uneven furniture and floor Easy to instal, Fitting M6 nuts of furniture feet( not include T nuts ) or install in wood furniture leg by drilling a 0.22 inch hole and inserting tee nut Can maintain balance and avoid floor pits that affect your furniture, used on conference room tables, office desks, home sofa, cabinet, restaurant furniture and display racks.