The Shepherd 1-1/2-inch Feltgard Plus Round Felt Threaded Stem Glides (4-Pack) are designed for use with displays, office equipment and household furniture with threaded sockets. They feature felt bottoms that reduce friction and noise, and they prevent scratching of hardwood and laminate floors. They attach easily with 1/4 in. x 20 x 1 in. threaded stems.
From the Manufacturer
Shepherd 1-1/2″ heavy duty threaded stem FeltGard glides offer superior protection on hardwood and hard surface flooring. The threaded stem allows the adjustability of height.