... for use in RISO digital duplicator RC-33,RC-55,RC/RA-300,RA-500,RC-4000,RC-4200,RC-4500,RA-4900,RA-5800,RA590 ... ribbon and Thermal transfer ribbon manufacturer.Specification: 1,Model: RA/RC roll master B4 length :100m Inner packing: 2rolls/box Box ... could provide jumbo roll for this kind of products. RA/RC roll master