For anyone with a decent but well-used patchbay system - these label strips are a really good addition, allowing space for clear easily seen labels. They are inexpensive and work well, and allow you to Mount customised print labels above (and below) the patchbay. The only con is that at one and a half rack space in height (20mm) they leave a narrow gap above and below (if 2 used), between adjacent rack units.
Very pleased with the product.