This is a really neat ceiling light shade. Has a neat, modern, mid century feel to it, for sure. Measures approx 8" wide/round not including lip. This is painted like a frosted white on the inside and glossy clear glass on the outside, with groovy ribs all the way around. Fitter 3 1/2", with 4" exterior. This is for the mounts that fit into a fixture, then screws around the exterior will hand screw in to hold it in place. I take pride in my pictures, and are a valuable extension of my description. Please take time to see the product fully. Buy with confidence! All items are packaged with great care and shipped next day, excluding any weekends and holidays. I will combine shipping whenever possible as long as the products can be safely packed together. Please be aware, if you have a PO Box, you may receive an additional invoice to cover any additional shipping costs. Please remember to leave feedback, it helps to keep good sellers . International Buyers: We do not mark merchandise as a gift or below value due to it being against US and International Regulations. All custom fees and duties are the responsibility of the buyer. Seller is not responsible for any package held by Customs. If returns are accepted. Must be returned in the same condition as received and in same or similar packaging.