The Royal Designs Clip-On Chandelier Collection breathes new life into your chandelier by combining timeless style and superior quality. We offer several styles of lampshade, from the classic bell-shape to the iconic empire shade, meaning you can match your decor with ease! The Double Flame Clip works with standard candelabra bulbs, giving our chandelier lampshade a secure connection to the frame. Our shade dimensions are formatted as (Top Diameter) x (Bottom Diameter) x (Slant Height). For slant height, measure in a straight line from the top edge to the bottom edge of the lamp shade?s front face. Refer to our product images for an example. Royal Designs, Inc. has been in the business of lampshades for decades, and we?re proud to offer a multitude of product lines that exemplify handcrafted quality and value. Our biggest priority is ensuring that you find the right shade, at the right size, at the right price. If you have any questions, don?t hesitate to get in touch! We?d love to help.