This size has a thickness of 1.6 mm for stability. Trumpet graphics The color is semi-gloss black with a subdued feel. Non-skid bottom that will not scratch your bookshelf or desk. It can be used as a bookend or as a room decoration. Small size makes it ideal for B5 size books etc. Please note that one round hole at the bottom of the product is required for production. (Precautions) Keep out of reach of small children. Have applied for trademark protection.