PHENOL FREE 3 1/8 x 230 ft x 50 rolls CORELESS Thermal PaperPhenol Free Thermal Paper No BPA, No BPSHigh contrast, dark black image on bright white base CORELESS thermal paper rolls have no plastic core to dispose of, better for the environment. Longer rolls means less changeouts and higher productivity. Suitable for all standard 3 1 8" or 80mm thermal receipt printers. Huge environmental benefits; no plastic core to buy, transport, store and put into the waste stream.