This level from draper has a highly visible red opti visiontm tilted vial which allows a single bubble view over 90deg and a front view thanks to the plumb sitereg dual viewtm redeffecttm vial the aluminium box section extrusion has a milled base not 1800mm curved top and is electrostatically powder coated and baked with polyester acrylic paint the ergo griptm nonslip soft grip handles tough bi material end caps anti slip wall pads and vertical vials make for comfortable usage duri