Thick cardboard, double-sided gray board A4 size, 30 sheets Thickness: 0.6mm - 0.64mm Used for core materials, backing boards, dividers, etc., but versatile in application. May have scratches, wrinkles, folds, or small black dots on the surface due to the paper manufacturing process. These are items stored at home and are not perfect. Also, due to the nature of the photos, the actual colors may differ slightly. Please purchase only if you understand and accept the above. *Cannot be combined with other items or discounted.* Immediate purchase is welcome! "Do not bend" and waterproof packaging, shipped via Nekopos. #SpecialtyPaper #ThickCardboard #Cards #Cover #Crafts #Handmade #CoreMaterial #BackingBoard #Divider #Cardboard #Bromide #TradingCards #Packaging #Wrapping #Reinforcement #Padding #PatternPaper #Chipboard