Buy from a local shop/store is my advice! My experience. Bought a lampshade, didn't read every bit of the description. It came quickly but it needed an adaptor to fit any table lamp. I rang Castlegate and they referred me to the description. There was a section about the carrier needed but it wasn't highlighted but there was another section highlighted but not relevant to my purchase (this has highlighted area since been removed) which I did read at the time and dismissed as irrelevant. I was advised I needed a carrier which was £2.50 (plus another £5.10 postage) as it is in various sizes I would need to have someone hold the shade above the lamp holder and measure to get the correct height... well I couldn't have done that without seeing the lampshade! I found the £2.50 carrier on Castlgates website and ordered the 4" carrier that I (thought) needed. It came quickly. It was the correct height but wouldn't fit my lamp holder. It turns out that there are different sized lamp holders the one I had bought was too small, no mention that there were two sizes when I spoke to the advisor. Castlegate do sell a larger diameter version, a bit more expensive but when I looked for the 4" height necessary they don't sell one. And it would have been another £5.10 postage on top! In fairness to Castlegate if I had read everything and checked the specification of all parts I could have made a better decision. I wouldn't have made the initial purchase as basically it wouldn't do the job. That isn't Castlegates fault. However the lesson I have learned is that I would have been better going to a local supplier/specialist. Discussed my needs and got the correct item. I am now frustrated that I have spent good money and don't have anything useful to show for it... lesson learned the hard way!