Check the listing for details. 10Pcs 0.98"x0.98" Caster Insert with Thread, Square M8 Thread for Furniture. Condition: New. Listed at 11.57 USD. Description:Well Material: Constructed from durable black plastic, the tube plug nut features a threaded design that allows for easy attachment of casters and adjustable pads. Its height is adjustable, providing stable support without deformation.Easy to Move: With the threaded tube plug, you have the option to install casters for effortless movement or use adjustable feet for balancing, floor protection, and reducing skidding and noise.Easy to Install: The chair leg plug comes equipped with ribs, making it simple to align and tap into position. The ribs ensure a secure fit, eliminating the need for additional adhesives.Wide Application: This nut plug is designed for various office or household furniture items such as mechanical equipment, fitness equipment, racks, TV stands, tables, shelves, beach chairs, and desk legs.