10Pcs M10 Lamp Tooth Tube Hollow Threaded Tube Screw Nut Lamp Cap Chandelier Connect Rod Fixed Base Lighting AccessoriesDental tube parameters: Outer diameter: 10mm material: metal Features: gap tube Colors: As picture proven Size:10/15/20/25/30mm excessive Package includes:10Pcs/Set The dental tube of the lamp mainly refers to the failings that should be fixed in the process the set up of the lamp, that is, through the installation, if the set up of the lamp does not have the dental tube, the lamp cannot be put in and fixed, the lamp head is connected and fixed, the base, Wall lights, flood lights, tune lights, wall washers, chandeliers and different set up equipment Note : 1. Due to varied light fixtures and pictures techniques, the colour of the picture may also be slightly diversified from the particular product 2. Due to varied handbook measurement methods, please 1-2cm allow a slight size difference.