Used for about six months, washed once. It's not noticeable once hung, but there's a bit of a stain on the edge. Please refer to the last photo. 3rd Grade Blackout, Flame Retardant, 50-Size Curtains (Palette 3 Gray 100X185X2) 7324594 Width 100 x Length 185cm x 2 panels Color: Gray Material: 100% Polyester Weight: Approximately 1.86kg Adjustable hooks to adjust the length. (A-hook specification to make the drapes look beautiful) 3rd Grade Blackout: Blackout rate of 99.40% or more, but less than 99.80% (JIS standard blackout level. There are blackout levels 1-3, with 1st grade having the highest blackout rate.) Blackout Level 1 (Nitori standard blackout level. There are 5 levels from 1-5, the higher the number, the less light passes through.) Shape-memory processing for beautiful pleats even after washing. Flame-retardant processing: Flame-retardant processing that meets the "flame-retardant performance standards" set by the Fire Service Law. Can be washed in a household washing machine. Washable Shape Memory 3rd Grade Blackout Flame Retardant Retail price: 5990 yen