The Sears Craftsman Inductive Advance Timing Light 28 2134 161.213400 Vintage is a diagnostic service tool used for automotive timing lights. This unit, made in the United States, features inductive capabilities and comes with leads as accessories. The manufacturer part number is 161.29400, and it is a single unit in quantity. This vintage timing light from Sears Craftsman is a reliable and quality tool for accurately measuring engine timing.