Designed to fit securely onto a BC lampholder with shade rings.   Such a simple but effective way of securing glass to your lampholder.  This gallery is designed to fit onto a glass with a 3" diameter rim.  Match the colour of your lampholder with the gallery you have chosen, or be daring and do a contrast.  It will be worth the effort and as we all know the beautiful light fitting is often the most talked about piece of the whole project.