This item is not spectacular - but to write a review, I think is a bit excessive. There is nothing to complain about, roll these things, they are well-made, well-trimmed, rolling perfectly, are beautifully white, do not interfere with each other, can be nice thread in gathering tape as well as in the rail. Ok, now I no longer think of what could describe this product even further. I am satisfied and would buy these things again if I still need that, which I doubt, because I have quantitatively very well stocked up.
