LimoStudio Photography 10' X 20' Backdrop Blue Chromakey Muslin Photo Video Background, AGG174 Blue Chroma key Muslin Backdrop Background Muslin Backdrop (10 x 20 ft.) Protecting from Dusty, Controlling Light Source, Enriching Muslin Color Muslin: 100% A grade premium quality | A seamless and weaving surface Machine washable | Crimped along the edge to prevent tears