Draper Postrite Post Level Magnetic Post Level Size 140mm x 100mm Colour Red Unique tool to plumb pipes, posts, levelling RSJ+s and other applications where vertical or horizontal is required. The hinged body opens to any angle and allows use on square, round and hexagonal posts, as well as girders (RSJ+s). Dual fixing - elastic straps for non magnetic surfaces and magnets for steel fence posts, RSJ+s, etc. Plastic construction with acrylic vials. Size 188 x 133mm. Accuracy 1.75mm per 1M = 0.1