Hollow wall anchors are used for thin or hollow walls like drywall, plasterboard, or other board materials that cannot support heavy weights. They function through biting into the board or wall and expand within its cavity for it to be secured. Generally, hollow wall anchors are to be used on works where ordinary screws cannot be reliable at. The strength of the anchor depends on the size of its expansion To install hollow wall anchors, one way is to use a hammer to tap it into wall until it is flat or even with the surface. Using a screwdriver, turn the screw clockwise until tight. This will expand the wings behind the drywall. Next, unscrew the screw from the hollow wall drive anchor. Lastly, insert the screw through the object you need to fasten and screw clockwise into the anchor until a resistance is felt. Another method to install hollow wall anchor is to use the setting tool. Firstly, makes sure that there is enough space in the cavity to inset the anchor so it can expand. Drill a hole slightly smaller than the anchor. Insert the anchor and give it a light tap. Insert the nose piece of the tool between the flat collar and underside of the screw.