1. Material: Stainless steel, anti-corrosion and anti-rust, thickness is 1.3 cm, the maximum load capacity can reach 200 kg, not easy to deform 2. This practical and easy-to-install system can be used for various applications such as furniture, cabinets, tables, boat seats, motorhomes, and caravans. 3. There are soft rubber feet on the bottom, which should prevent it from hurting your table, which is perfect. Free spins and beautiful appearance 4. Maintenance: This product is based on the principle of metal bearings. For normal use, please regularly add oil to the place where the steel balls are placed (light oil can be used). 5. Fine workmanship, good sliding, and perfect drilling. Use it to create a monitor exchange station in the technical support department, perfect