... brightness, good in toughness, deep thermal image Neat end surface, good in tightness, convenient Thermal paper rollsize: 37mmx50mm, 37mmx70mm, 44mmx50mm, ... kinds of thermal paper such as POS paper,ATM paper,Fax paper2.Long enough for the thermal paper rolls3.Various specifications of thermal rolls available, ... definition7.Worldwide universal core, handsome and practical thermal paper rolls