General description You will get 16 adjustable office chair levelers and 16 T-nuts, enough for your daily use. These furniture leveling feet are designed to protect your sofa and cabinet from scratches, keep the furniture balanced, and provide good shock absorption. Technical specifications Threaded rod length: 18mm Round base diameter: 22mm Material: PP (wear-resistant, non-slip, sturdy, and durable) Compatibility and accessories Suitable for furniture legs with a diameter of more than 25mm Works on wood, laminate, hardwood, tile, carpet, and more Installation Installation requires drilling and inserting T-nuts Not suitable for furniture legs smaller than 25mm in diameter due to risk of cracking during installation Metal furniture legs require welding or threaded riveting Usage Adjust the height according to your needs to avoid direct contact with the ground Protect floors, carpets, and tiles from damage