1. These adjustable lamp harps are made of heavy metal, strong and durable. The black plated surface prevents the harp from oxidation and rusting to keep a long service lift. 2. The standard harp saddle (1/8IPS hole) fit the standard E26 or E27 socket without outer ring. The E26 and E27 UNO adapter is suitabel for the E26 and E27 socket with collar ring respectively. The E14 plastic converter ring (white plastic part) can help you easily convert E27 to E14 as you need. 3. Easy to install: Just stretch both slides end of harp into the saddle slot 4. Wide application: this adjustable lamp harp is great for your DIY lamp project, or the replacement of the old harp for your table lamps, floor lamp at home, hotel, coffee shop, restaurant and casino, etc. 5. Package: including 1 X adjustable lamp harp, 1 X 1/8IPS standard saddle, 1 X E26 UNO adapter, 1 X E27 UNO adapter, 1 X finial, 1 X 1/2" riser, 1 X converter ring (E27 TO E14 plastic converter) Adjustable Lamp Harp Lampshade Holder 7 8 9 10 inch Adjustable with 1/8IPS Standard Saddle and E14 E26 E27 Base UNO Fitter Adapter and Riser Set, Height of 7", 8", 9", 10" can be adjustable.