PRODUCT DETAILS - Material: ABS Plastic; Color: Black; Type: E27 Light Shape; Max Heat-resistance: 210 Centigrade; Outer Diameter: 58mm; Inner Diameter: 38 - 40mm; Hight: 11.5mm; Package Includes: 1 Pack; Weight: about 7g. HIGH QUALITY - The lampshade ring converter is made of high quality sturdy hard ABS plastic, which is durable, not easily deformed and last for a long time. Max 210 Centigrade heat-resistance made the lamp shade reducer rings will not warp or melt due to heating, they have strong insulation, high temperature resistance. FUNCTION - The E27 lampshade ring adapts to lampshades mainly used in UK & Europe, by turning the lamp ring to fix the bulb and lampshade. You just need to few seconds to fix the lamp shade by our lampshade ring. EASY TO INSTALL - The lamp holder is easy to install, you don't need to use any tools, the installation can be completed in a few seconds. With the lamp holder ring, you only need to add a beautiful lampshade (such as a wall lamp) to the lamp, and then tighten and fix the lampshade. When you do not need to use it, you can directly remove it without any help from an electrician. It is very simple and convenient, even the person who installed it for the first time can easily complete it. WIDELY USED - The lamp shade reducing ring can work for E27 round head bulbs of various types, helping to fit different style lamp shapes, which is widely applied for table lamp, desk lamp, floor lamp, plate light, bedside lamp, etc. You are able to use it to replace broken or old lights as well.