This Wall Plug expands for providing instant grip on concrete, brickwork, plasterboard, masonry and stone walls. This plug is inserted loosely into the drilled hole and further, a screw is tightened into the center of hole. Anti-rotation fins of the offered plug prevent the chances of spinning. Most of the time this plug is used in hollow or solid structures as it reduces drilling time during electronic equipment installation works. This plug is manufactured using good quality raw materials and sophisticated machines. You can get the provided Wall Plug from us in a variety of colors, designs and sizes.