Watch photos before buying, Please note: This is a shader for the spider installation. Please confirm that your desk lamp is a spider capable of assembling this lamp cover before purchase. Top diameter:6 inch Bottom diameter:13 inch Tall:9.4 inch Spider diameter:0.4 inch Color:Black (picture color) lampshades for tabel lamp - Equipped with various lamp head converters, E14, E26, E27. When your lamp holder is E14, you can easily convert E27 to E14 with E14 converter (white plastic sheet), you can choose the lampshade size that best suits your installation. - Shade Harp Stand: 8 9 10 11 12 5-level adjustable, suitable for 9-12 shade heights. To meet the requirements of different heights, you can adjust as needed. - EASY INSTALLATION: This lampshade harp is easy to install and has a wide range of applications, suitable for all kinds of lampshades. - The lamp head is made of nickel-plated metal, which prevents the lamp head from rusting and has a longer service life. - Sturdy & Durable: Both the harp and bow are made of heavy metal to ensure a secure fit.