Thermal paper roll, 58mm width, 20m length, set of 19 rolls + 1 roll from a different manufacturer - Size: 58mm (width) x 40mm (outer diameter) x 12mm (inner diameter) - Length: 20m - Quantity: 20 rolls - Product number: sx-58401220 I bought these for a handheld device, but I'm selling them because the device broke and I no longer need them. Thank you for looking.