Replacement Separating Roller (serrated rolling rings) Holder Unit for zcM Series of Electric Tape Dispensers The START International ZCM1000P533-1 Replacement Separating Roller (serrated rolling rings) Holder Unit is designed for use with the Zcm1000 (M1000), zcM1100, zcM2000 and zcM2200 Electric Tape Dispensers with NS and T modifications. The Holder Unit contains 10 serrated edge roller rings (replacement part # ZCM1000P138-1).START International manufactures Tape Dispensers, Label Dispensers, and Non-Adhesive Material Cutters. The company, founded in 1981, is headquartered in Addison, TX.