Product Size：Outer diameter-43mm/1.7in, Inner diameter-26mm/1in, Height-8mm/0.32in；
Package Include：You will get 4 pieces of lampshade adaptor ring ,they can cover your daily needs and replacements；
Easy to Use：The internal thread of the reducing ring matches the thread on the lamp holder, and the installation is easily completed；
Wide Applicaions：lamp shade holder used to fix the various bulbs and lampshade,which can widely used in table lamps, chandeliers, desk lamp, floor lamp, plate light, bedside lamp, wall lamp, etc；
Material: Made of white hard plastic, not easy to deform, long service life；