Experience the Uniqueness of Natural Linen Fabric – Elevate Your Ambiance Spider Fitter Type:This lampshade is designed with a spider fitter (nickel- plated) and is specifically designed for use with table lamps or floor lamps that have a harp support (harp not included). Therefore, before placing an order, please ensure that your current fixture is compatible with a spider- type fitter and has a harp. If it is not compatible, you will need to purchase a harp separately for installation. Material:Natural Linen Fabric Size: Top Diameter 11" x Bottom Dia 13" x Height 10" Top Diameter 10" x Bottom Dia 12" x Height 9" Top Diameter 8" x Bottom Dia 10" x Height 8" Type: Spider construction Easy Assembly:Our lampshades are packaged in a rolled-up form for safe delivery. Just attach the wire ring to the upper and lower clips, a quick 2-3 minute process. P.S. Please note that This particular lampshade size is designed to fit harp frames with heights ranging between 6.5 inches and 7.5inches. Prior to making a purchase, we kindly advise you to ensure that the height of your lampshade harp is compatible. Doing so will enhance the visual appeal of your lamp. Assembly method: 1.Fix the join end of lamp shade (not too tight) 2. Fit the upper ring into the clips on the upper part of lamp shade 3.Fit the bottom ring into the clips on the lower part of lamp shade. 4. Adjust the join end to the right position, you may also adjust it during installation if needed. package list: lampshade 2pcs Top metal rings 2pcs Bottom metal rings 2pcs