Premium quality 10" (250mm) heavy duty spirit level, with the strongest ever rare earth magnets, perfect for sticking to steel scaffold tubes etc. Includes two large crystal clear, non-fogging, unbreakable, monoblock, acrylic vials (one horizontal and one vertical), epoxy-locked vials which never need adjusting. Solid die cast aluminum frame for strength high torque resistance eliminates the problem of twisting plus its virtually indestructible.