Upgrade your lighting with this 100% pure silk softback lampshade featuring a unique square bell shape and fully lined silk interior. A timeless classic, this Off White Lampshade enhances a variety of lamp bases. *Special Note: How to Measure Lampshade 1. Measure across the TOP of the lamp shade 2. Measure across the BOTTOM of the lamp shade 3. Measure along the SLANT HEIGHT (side) of the lamp shade.