CORELESS thermal paper rolls, by eliminating the plastic core we are able put more paper on a roll; up to 30 ft more paper vs a thermal roll on a plastic core. This means less changeouts and higher productivity. Huge environmental benefits; no plastic core to buy, transport, store and put into the waste stream. The 215 ft roll has an OD of only 2 1/2" or 64mm similar to 185 foot rolls on a core. Fits all 80mm 3 1/8" wide receipt printers. Direct from the paper converter, Western Diazo in Calgary, Alberta, CANADA.