Pencil is constructed of high-impact plastic and can withstand being run over by a 3/4 ton truck on concrete. Has pocket clip. Jaws securely hold the Dura Lead in place; press cap to release lead. Carded. Refer to Model No. 77-589 (SKU 353035), 77-599, and 77-609 for Dura Lead refills. Includes 3-piece lead refill.