The PRO PLUG System for PVC is a superior plugging system for PVC decking & trim. It combines screw down strength with the beauty of a hidden fastener system. Install in 2 easy steps. Set the screw with the PRO PLUG PVC Tool and tap in the PVC plug with a hammer. PRO PLUG PVC Plugs are made from the original PVC material so they are a perfect match to your PVC decking & trim PRO PLUG PVC Tool drives fasteners to the correct depth every time. The No Cam-Out Auto Stop prevents screw recess from stripping.