OXO Good Grips 1066936 9-Inch Torpedo Level With Angle Measure Angle Arm pivots to measure or copy any angle up to 90 and locks at 90 to be used as a square Extruded aluminum body for precision and accuracy V-shaped magnetic bottom attaches to round an flat metal surfaces for hands-free use Vials set against high-contrast white background for maximum visibility Soft end caps protect Level and work surface if dropped