Description：Material: The tube plug nut is crafted from durable black plastic and features a threaded design. It can be easily paired with casters and adjustable pads, offering height adjustability and ensuring stable support without deformation.Function: The threaded tube plug provides versatility in installation. You can choose to install casters for effortless mobility or opt for adjustable feet to achieve balance, protect the floor, and reduce skidding and noise.Easy to install: The chair leg plug is designed with ribs, making it easy to align and tap into position. The ribs provide a secure fit, eliminating the need for additional adhesives.Wide Application: This nut plug is suitable for office or household furniture, including mechanical equipment, fitness equipment, racks, TV stands, tables, shelves, beach chairs, and desk legs. Its wide range of applications ensures practicality in various settings.Specification:Product Name: End Caps Insert PlugsMaterial: PlasticThickness: 4mm/0.15"Overall Height: 19mm/0.74"Thread Size: M8*1.25Diameter: 22mm/0.86"Inner Diameter: 15mm/0.59"Package Includes:16 x Threaded Tube Inserts