Made from a creamy matte acrylic sheet, this product is great for eliminating glare from CFL or LED bulbs, creating more comfortable, eye-friendly lighting. You can also use it to direct light downward for accent or improved reading light. It provides soft and evenly distributed light, creating a pleasant and comfortable reading atmosphere in your living space.SpecificationMaterial: Acrylic; Center Hole Size: 10mm / 3/8 inch; Diameter: 305mm/12inch; Thickness: 3mm / 1/8 inch; Packing List: 1Pcs x Lampshade DiffuserAdvantageMade from durable, heat-resistant material, this lamp shape diffuser can withstand the heat generated by the lamp. By softening and diffuse the light, this diffuser improves visual comfort by reducing eyestrain, making it great for reading, working, or relaxing.InstructionJust directly put the acrylic board on the top or bottom of the lampshade. Dual use for mounting on top of your table lamp shade or floor lamp shade or fits the to