The package includes 12 furniture leveling feet and comes with 12 T-nuts. Coarse thread, 1/4 inch-20 UNC. The product height is 1 inch (25 mm), screw length is 0.7 inch (18 mm), base diameter is 1 inch (25 mm), and base thickness is 0.29 inch (7 mm). The furniture leveling feet are made of galvanized steel and black PP non-slip base, the leveling rails are strong enough and rust-proof. The height of the furniture level can be adjusted via threads (1/3 inch - 3/4 inch) according to your needs. Can bear over 200 lbs. Furniture leveling feet are adjustable devices that attach to the bottom of furniture legs to provide stability on uneven surfaces. Preventing furniture from shaking also makes it easy to move furniture, protects floors from scratches, and reduces noise when moving furniture. Adjustable table legs are compatible with various floor types - wood, laminate, hardwood, tile, and carpet. They fit a wide range of furniture such as tables, cabinets, chairs, desks, TV stands, shoe racks, and more. Whether indoors or outdoors, these legs offer versatile height adjustment for tables, chairs, kitchen cabinets, stools, dressing tables, outdoor furniture, and even restaurant installations. Adjustable feet fit most American-made furniture feet and level easily to update your furniture feet with ease. Please check the size before purchasing to ensure it fits your replacement. Adjustable furniture legs are recommended for wooden furniture with legs larger than 1 inch in diameter. If it is smaller than this size, there is a risk of cracking during installation. Color: Black Material: Metal Package Contents: 1 set * Furniture Leveling Feet Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.