First, this product is exactly as advertised and it's great, if it fits in your device.My device -- a Clover Flex handheld POS -- said it took any standard 2 1/4" x 85' roll. These are 2 1/4" x 85 rolls, so I bought the case of 50.Turns out that *these* rolls have a rather large core tube which makes the diameter of the roll much-much too big to fit inside the Flex. I had to tear off about 20' of paper to get the roll to fit.Ended up returnng the other 49 rolls. I'll try to update this review if I find something that fits the Flex.