"I used this to install two Cat5e cables round the central hallway with one 90° bend and four 45° internal and external corners. I was originally going to cover it with coving, but no need! It looks great, including the joins around the funny angles. Just a hint...I stuck it to the ceiling with the cover flap folding down. It's easy then to hold against the vertical wall while you push up and stick. The cover flap then holds cables while you place them."