for use: Lexmark printers X Series: i3, X74, X75, X83, X125, X1100, X1130, X1140, X1150, X1185, X2240, X2250. Z Series: Z13, Z23, Z25, Z33, Z35, Z515, Z600, Z601, Z603, Z605, Z611, Z615. Free shipping if take 2 packs.