Sign the buttons on the camera and you will make your operator happy! The most important thing is that they are reusable! Forget about making tape lebels on each set! Thanks to their size (20x10mm), they are readable enough and at the same time will fit tightly arranged next to buttons. Come in a set of: ND+, False, Log C. If you need another just write to us! Come with hook velcro on one side. We also add a loop velcro strip to the package to install on the camera.