specifications - Holdware 16 pcs adjustable furniture levelers with M8 (5/16) inch Threaded Shank and 16 t-nuts.Installation - The leg levelers is easy to install, selecting the 8mm bit and drill one hole, Fix t-nut into hole and screw in the leveler to desired heightMaterials - The adjustable table feet are made of 100% solid steel and thick high-density nylon base. Suitable for most floors in homes and gardens.Adjustable & Support – 1 3/8 inches Diameter Sturdy base and fully adjustable thread shank ensure maximum support and better adjustable. The table leveling feet adjustable height from 0.4 to 1 inch.Applications - The adjustable cabinet feet can be placed on tables, chairs, shelving units, kitchen cabinets, plant stands, and so much more in homes, kitchens, garages, workshops, offices, restaurants, and shops. Product Description Heavy Duty Adjustable Furniture Leg Levelers Leveling Feet cabinet adjustable legs 5/16 adjustable table feet, cabinet adjustable legs, levelers furniture.You will get 16 pcs adjustable furniture feet with M8 (5/16) inch Threaded Shank and 16 t-nuts. The adjustable table feet are made of 100% solid steel and thick high-density nylon base. 1 3/8 inches Diameter Sturdy base and fully adjustable thread shank ensure maximum support and better adjustable.The table leveling feet adjustable height from 0.4 to 1 inch. The adjustable cabinet feet can be placed on tables, chairs, shelving units, kitchen cabinets, plant stands, and so much more in homes, kitchens, garages, workshops, offices, restaurants, and shops. Specifications of the swivel chair feet: Material: Steel + High-density Nylon Base Size: Thickness: 15mm Base width: 1-3/8 inch / 35mm T-nut Plate Diameter: M8 Thread Size: M8 Thread Shank Length: 30mm / 1.2 inch Adjustable Height:From 0.4 in to 1 inch Package Include: 16 x cabinet adjustable legs 16 x Plate T-Nut