The Faithfull SL250 scaffold level has a strong die-cast body which is shaped for easy handling and is ideal for scaffolders, pipe fitters and steel erectors. A milled base with flush mounted magnets permits hands free measuring on steel surfaces. The solid acrylic vials are accurate to 1 mm per metre. 3 vials: horizontal, vertical and 45. Length: 240 mm (9.1/2in).