Over 50 hard cores, such as from plastic wrap, in total. Approximate dimensions and quantity (increasing): 228 x 28mm: 22 pieces 308 x 28mm: 15 pieces 255 x 28mm 306 x 35mm 255 x 32mm 208 x 57mm 159 x 39mm Plus various others, over 10 pieces, packed to fill the box! Please use for crafts and artwork. ^_^ Carefully packed to fit as much as possible in an 80-size box to save on shipping costs. They will be packed carefully to prevent crushing and moisture damage, and shipped promptly!