STANLEY 42-264, HIGH-IMPACT ABS MAGNETIC TORPEDO LEVEL, 9" DURABLE, SHOCK- ABS CONSTRUCTION. VIALS PROVIDE ACCURACY OF 0.002 IN/IN (2MM/M). CENTER TOP READ VIAL FOR IMPROVED VISIBILITY. MAGNETIC STRIP TO ALLOW FOR HANDS FREE OPERATION ON METAL SURFACES. NON-MARRING MATERIAL WILL NOT DAMAGE FINISHED SURFACES. PIPE GROOVE FOR USE ON ROUNDED SURFACES.