Do you want a kind of professional retaining ring for your lampshade? Do you want to keep your light socket and lampshade connected? This can be your . Really practical and useful, just install it onto your lampshade. Features - ColorBlack -Material:PET - Size: 5.76X5.76X1.01cm/2.26X2.26X0.40in Inner diameter: 3.81cm Outer diameter: 5.76cm - Product workmanship is beautiful, every detail is clearly visible, firm and not easy to fall off. - Meet a variety of use scenarios. Suitable for 3.81cm diameter E27 lampholders, also suitable for some E26 lampholders. - You can use this ring to mount and add a beautiful shade to your lamp. - It is in stable characteristics, high performance and it is in great reliability, simple, easy to install. - Excellent craft, carefully down to every detail to give it and beautiful look. Package list: 250 x lamp shade rings