Come with Black Inner Sheets Each sleeve has a black inner sheet which makes for a great background if your inserted art is smaller than 11.18 x 17.4. Not only make your paintings flat and wrinklefree but also let you insert or remove the drawings fast and easily. TailorMade Spine Title You can customize your watercolors, sketches, newspaper pages, art pieces and illustrations by using the reversible spine insert. Its a good choice for a better classification and easily find the artwork you want. High Transparency Lies Flat When Open Our presentation book with crystal clear PP sheet protectors offers complete transparency for checking through and organizing. Bound sheet protector lies flat when open, free your hands. Heavy Duty Excellent Protection Made from durable polypropylene which is archival quality, acidfree, nonstick, and nonglare, and waterproof. Thickened and sturdy cover wont easy to crack and keeps your clear sleeves from being damaged. Large 11x17 or A3 Art Portfolio Folder Folder measures 17 34 L x 11 1316 W x 1316 G. Suitable for artwork storage and displaying your 11.18 x 17.4 or A3 artwork. 30 toploading plastic sleeves nonrefillable allow you display 60 pages.