Description: Made of Iron material with baked coating, good rust resistance, long service life. Easy to use, pick an appropriate lampshade then use some glue to easily cover the ring. Widely used at the bottom and top of the lampshade to keep the round shape, perfect for making custom DIY drum lampshades. Notice: Please have a look at the size to decide if the lampshade is good to fit. Also, the baked coating might not cover the joint link. Specification: Color: White Material: Iron Finish: Baked Coating Thickness: 3mm / 0.12" Outer Diameter: 150mm / 5.91" Hole Diameter: 10mm / 0.39" Package Content: 1 x Lamp Shade Ring 1 x Lamp Shade Support