0 strong tape (= a long strip of material) that is sticky on one side, used for holding things in place:
Some photographers solve this simply by covering the buttons with a piece of gaffer tape.
Gaffer tape combines excellent strength properties with the ability to be ripped by hand, so no cutting tools are necessary.
One variation is gaffer tape designed to be cleanly removed, while duct tape is not.
Similarly, a narrow version of gaffer tape, called spike tape, is used in theater productions for floor layout.
Merlin placed gaffer tape over his mouth and refused to speak during the live show.
