The shade is about 12 diameter. Caramel Slag glass Shade. The Lamp is heavy duty and doesn’t wobble. Made of Spelter Metal. Light can be controlled 3 ways – brightness varies. In Very Good condition despite age-has minimal wear. No cracks, nicks or dings on the Glass. See photos and zoom in as they’re part of the item description. We encourage buyers to ask questions, do your own research, read descriptions and zoom in pictures. We describe items to the best of our ability but are not experts in any field. Most vintage items are pre-owned unless otherwise specified and may contain imperfections that are unnoticed by us. This may include but not limited to dust, scuffs, swirls, fading, discolorations and minor nicks here and there. Most will be only visible upon close scrutiny consisting of minor cosmetic flaws and does not impair overall appearance and function. Minor cosmetic issues are consistent with normal wear and previous storage of vintage/ antique items. Please check out our other listings, serious buyers with offers are welcome. Thank You for supporting our small business!