Width :17mm/0.7inch<br> Height: 26mm/1.0inch<br> Inner hole: M10<br> Material: Metal + plating<br> Color:Red bronze<br> Quantity:1pcs<br> Process: Grinding, polishing,electroplating<br> Add a decorative style to the top of the bulb while holding the shade in place. Applicable to the assembly of crystal lamps, chandeliers, bar lamps, porch lamps, dining chandeliers, and various DIY lighting fixtures. Note:<br> Please allow 1-3mm error due to manual measurement. Thanks for your understanding.