Applied to a variety of high-rise sockets, socket head sockets, table stools, sofa tables, etc. The characteristics are height adjustable, durable, wear-resistant Adjustable square tube plug for furniture caster with M8 nut. p>Note: The data are all measured manually. Please allow an error of 1-3 cm. Due to the difference between the light and the display, there is a certain color difference, which is subject to the actual object received.