Easy to use with a range of A-Z, 1-31, business, school and home office subject stickers included. Examples of the stickers included for business - sales, invoices,expenses; for school - English, history, mathematics; and for the home officembank, medical, telephone, and receipts.1) Size: F/C or A42) Materials: grey board paper + printed paper + paper board (Kraft paper or wood-free paper)3) Color: grey, blue, red, yellow, black, printed flower or others4) Cover: rigid or soft, PU or printed paper5) We also accept the customization designs producing area:China