These door frame struts from tectake feature a continuous tension system, ball bearing joints, and pressure plates at the ends of each strut. This means you can establish the perfect tension at up to a 45-degree angle. A useful accessory to your other plasterboard props, roof supports and other tools. The telescopic pole is made from durable steel piping with springs, and the plastic pressure plates are perfect for setting and adjusting door frames to prevent bowing out. These universal door frame struts from tectake makes setting door frames a breeze. The perfect equipment for your home, garden or workshop, this item works well with tools, clamps, and other accessories.