The best way to install a holder on drywall is to use a toggle bolt. It is a screw that has a winged nut on it that expands when you tighten it. u003cbru003eu003cbru003eIt can be used to attach the holder to drywall or plaster. You will need to make sure that there is at least a 1/8-inch hole in the drywall before you install the toggle bolt.