Kaban Kobo Yamamoto Randsel (School Backpack) Product Name: Ray Black Noi (Artificial Leather) Black x Blue - Color: Black body with blue stitching, matte finish - Material: Artificial Leather - Compatible with A4 flat files - Lightweight model (approx. 1280g) Used for 6 years. Randsel cover was used for 5 years, without a cover for 1 year. Shoulder straps show signs of wear. (See images 4, 5, and 9) Slight staining on the inside of the randsel. (See image 7) * There are no noticeable scratches or stains, but there is some wear and tear from 6 years of use.