This professional magnetic boat level is made from die-cast aluminium and it has a milled underside for maximum flatness and high accuracy. It has a powder-coated finish and strong rare earth magnets incorporated into the underside. The level features two UV and shock resistant vials set at 90 Degree and 180 Degree angles. There are hang holes at both ends for convenient storage. The accuracy of this level is 0.5mm in a standard working position.