... Paper :1) All size is available: 76mmx70mm, 70mmx70mm, 57mmx70mm, 57mmx50mm, 44mmx70mm, 37mmx70mm, etc. 2) Any core is ok: Cardboard core, plastic core.3) ... good in tightness, convenient and practical; 5) Worldwide universal core, handsome and practical 6) Various specifications of thermal rolls ... available, able to be Customized by customers requests. 3-ply w/y carbonless paper rolls for sale