Suitable for the following situations 1: Prevent direct contact between the furniture and the floor. 2: Install levelers on the furniture to easily move it when cleaning. 3: The furniture is unbalanced and shakes during use. 4: Want to increase or adjust the height of the furniture. 5: The original leveler of the furniture is damaged. Specification: Size: T- Nut Kit 3/8 ''-16 Thread Color: Black Material: Iron Package Include: 4 x Furniture Feet Notices: 1.Since the size is manually measured, please allow an error of 1-2mm 2.The color of the product may vary slightly due to photography & your screen