Material: high quality fax grade thermal paper, Smooth on both sides and Special curl control 210mmx20m, 210mmx30m 216mmx20m, 216mmx30m 256mmx50m, 256mmx100m Any other lengthes are available High sensitivity, resist fading and enhanced image quality OEM packing, with your logo & mark preprinted on cartons. Key Specifications/ Special Features: • High-brightness • 2 to 5 years image lifespan • Smooth surface with lowest fray on printer heads • High tightness and evenly cut • Decently packed to ensure the products reach the customers in good condition • Various core sizes and roll sizes are available or can be customized