Johnson Level & Tool 1411-0900 Billet Torpedo Level, 9-Inch Powerful GripTight v-groove rare earth magnets hold to flat or round ferrous metal surfaces Solid billet aluminum frame Machined vial openings to assure accuracy Lifetime Accuracy Warranty: Johnson Level warrants this product against defects in material and workmanship for life. The company will replace or repair the product if it fails under normal use. Bent level frames void warranty. This warranty is limited to the repair or replacement of the product only.