The RISO Master S-4250 Ztype30 Paper is a high-quality thermal paper designed for use with RISO printers. Made in Japan, this paper is compatible with various RISO models such as the RZ200, 310 Master, and EZ220. With a paper size of 227mm X 109m, this product comes in a convenient box containing 2 rolls of paper. Ideal for printing A4, letter, and legal documents, this RISO paper ensures crisp and professional results.