Product Dimensions: 1-1/2 in. (39 mm) inside diameter; 2.1 in. (55 mm) outside diameter, height: 1.57 in. (40 mm)
Widely Used: Use with medium base threaded socket rings to secure glass lampshades, work on light fixtures above mirrors/vanity lights or bathroom lights, install new glass wall light covers, secure pendant lights, replace original plastic retainers/old rings, etc.
Easy To Use: Directly replaces old or damaged socket rings on light and fan units.
Sturdy Material - Made of high quality aluminum, will not deform/melt due to heat. Replaces the plastic ring that comes with the fixture, and the aluminum construction provides extra durability
Note: Please check the diameter of your existing threaded socket before purchasing, screw rings will only fit threaded medium ceramic sockets 1-1/2 inches (39 mm).