This NEW shade holder & bulb socket is for ALL standard 2 1/4 inch wide lip lamp shades. (you receive all the parts & white ceramic insulator shown here. Not the light bulb or brown glass shade) Example of brown glass shade shows how the 3 ribbed thumb set screws hold your standard 2 1/4 inch wide lip shade in place. Most shades use 2 1/4 inch fitters like this, though you should check yours to make sure. The top has 3/8 inch wide female thread should you want to screw in pipe. Or run your wires directly out the top to ceiling. MADE OF THIN brass coated metal for the socket ( a magnet does not attach to the alloy metal) and white porcelain ceramic for the socket insulator. THICK SOLID brass shade fitter with 3 ribbed lamp shade set thumb screws. This socket is NEW. It does look like old vintage ones. If you put vinegar or patina solution on it you can give it a aged/verdigris turquoise blue/green appearance. It is the vintage style popular in the 20's & 30's. Accepts any regular standard size light bulbs. E26 or E27 is the technical name for this bulb socket. Works in USA., Canada, UK, Europe, Russia, Israel, Egypt, Turkey, Italy, Hong Kong, China, Japan, South Korea, Taiwan, Australia, New Zealand etc. Use 110/120 volts in USA & Canada, or 220/240 volts, or 100 volts in Japan. I have sold more than 1,200 of these to USA, Japan, Taiwan, South Korea, UK, Europe, Australia, etc. They work. You will receive a bulb socket & lamp shade holder fitter as shown in first photos. Brown glass lamp SHADE and screw in Edison light bulb NOT included. Last 2 photos are to show how this fitter works on a cone glass lamp shade. Please see my other listing for vintage style 2 strand wire, other vintage lighting. Save $ on postage: First one is $6.99 worldwide. 2nd one is only $1 postage extra. Buy 3 the total is $8.99 postage. Buy 4 the postage is $9.99 Buy 5 the postage is $10.99 Buy 10 the postage is $15.99 Buy 20 the postage is $25.99 including insurance & delivery confirmation Postage cost quoted is to USA, Canada, UK, Europe, Eastern Europe, Israel, Turkey, Russia, Japan, South Korea, Taiwan, Australia, New Zealand & REST OF THE WORLD. Guaranteed to WORK ! Worldwide buyers WELCOME. Mail from Bangkok is taking around 2 weeks. Insurance is included for loss or breakage. You can trust Oldcastiron. We carefully pack and mail your item. Any questions gladly answered. Thank you for looking.