The Kapro 923 Cast Torpedo Level has a heavy-duty cast aluminium body with 3 solid acrylic vials, including 1 plumb site dual-view vial, 1 horizontal vial and a 45 degree angle vial. The plumb side vial supplies a direct view of the vertical vial, without having to twist or bend your neck to view, for easy and accurate readings every time. This level is designed with a milled surface including rare-earth magnets, and a V groove for easy placement on pipes. Specification: Accuracy: 0.5 mm/m.