Sometimes known as rectangular pockets, spine label pockets, angular file pockets or diagonal corner pockets they will stick to almost any smooth surface, especially card, glass and plastic One particular pocket is regularly used for sticking inside car windscreens for holding car park permits and admirably demonstrates the robustness of the adhesive used. We also stock a small range of self-adhesive pockets with a closing flap for securing items such as memory sticks to the inside of folders or binders or the side of machines.