LAMPSHADE SIZE - Our table lamp shade 13-inch (33cm) diameter top, 13-inch (33cm) bottom diameter, 9.8-inch (25cm) high; 1.57 inch (42mm) and 0.39 inch(10mm) ring diameter. Medium size fits most table lamps, pendant lights, and floor lamps. - We also provide E27 to E26 and E27 to E14 lamp adapters to meet your needs for different lamp specifications. (NOTE: Please check the ring diameter of the light frame carefully before ordering.)EASY TO INSTALL - Our drum lampshade is rolled up for better protection and to prevent denting during transport, and requires a few minutes of easy and quick assembly by yourself. Just need to fasten the fabric lampshade around the metal ring and stick it. It can be detached and stored when not in use.DURABLE MATERIAL - The floor lamp shade is made of linen fabric that diffuses the light and provides a pleasant ambiance and warm lighting. The strong metal frame provides good stability for the whole structure and is durable