Xpress It Double sided tape 12mm x 50m This tape is 12 mm and I have to agree with the DT girls that it's ease of tearing makes it quick and easy to use -very economical too at 50m long that works out at less than 9c a metre!! I gave up on photo corners a long time ago and have tried a few different 12mm tapes since then. I have to say this one has me hooked.