37mmx50mm, 37mmx70mm, 44mmx50mm, 44x70mm, 44x76mm, 57mmx50mm, etc. 57mmx57mm, 76mmx70mm, 76mmx76mm, 80mmx70mm, 80mmx80mm...etc high quality competitive price stable delivery good opacityHigh sensitivity, clear printing effectApplicable for various thermal fax machines, satisfy different requirements on printing; Smooth surface and sides, moderate tightness of paper roll, jam free;