Your bid wins two very classy new smallish cathedral glass hand made lamp shades. These just fit straight onto your common or garden plastic ceiling lamp holder or could fit anything that has the common 29mm threaded lamp holder e.g. table lamp or wall lamp or maybe even a 3-light pendant. OR they can fit 38mm Edison lamp holders in some cases as well. Seller can also offer nice small round LED bayonet bulbs as well if desired. (seller MAY have more than 2 if more required -check if more needed) Cathedral glass is hand-made glass sheet that has the colour in the glass - they are not stained glass or coated glass. Please bear in mind that these are handmade, Size can vary a bit about 17cm overall , but are very good. - they are not machine made. Check sellers other listings for other Tiffany style lamps (there are 30cm and even 40cm to match these ones)