DTTRA Diameter Lampshade Aluminum Threaded Review

Strong aluminum material, metal will not warp/melt due to heating. Replace the plastic ring that comes with the luminaire, the aluminum structure provides extra durability. Commonly used size -1-1 / 2 inches (39MM) inside diameter, 2 inches (50MM) outside diameter. Use 2-1/4 inch glass hood and more lamps. Use with medium-sized threaded sockets to fix glass lampshades, work on lamps on mirrors/make-up lights or bathroom lights, install new glass wall lampshades, fix chandelier, replace original plastic holders/old rings, etc. Package Contents: 4 X white aluminum socket rings.