Total height:23mm (0.9" ) Screw length : 17mm (0.67"）Thread Size :6mm(0.24'') Base diameter: 21 mm(0.82") Our table and chair leveling feet can quickly and easily fix chairs and table legs, so you no longer need to balance with folded cardboard. It is the best method for all types of furniture levels in homes, offices, schools, restaurants. Easy to install, our material is the best material for heavy-duty use, very simple and fast to complete the installation out of balance. Suitable for all furniture, no need to buy a new table or chair from the store, you can use our horizontal mat to update the furniture at home. Made of strong materials. These adjustable furniture feet are fully adjustable threads that provide maximum support and adjustability. It can bear 100% bending and deflection under load. Table leveling has a wide range of uses, not limited to furniture. Our furniture feet can be used for any application you want to balance, from garage tables to garden benches. Made of strong materials. These adjustable furniture feet are fully adjustable threads that provide maximum support and adjustability. It can bear 100% bending and deflection under load.