Paper roll is designed for use in calculators, cash registers and adding machines. Single-ply bond paper produces crisp, clear images and is lint-free to reduce jams. It is made with an elemental chlorine-free process. High-quality roll includes an end-of-roll indicator to warn that it needs to be replaced. Easy-to-install design allows simple roll replacement to save you valuable time when changing your depleted roll. Core has a 3" diameter.