● Package includes 2 7/8" 3/8" drive vacuum switch sockets and 7/8" 2 drive oxygen sensor socket ● Purpose Designed for use with ratchets and breaker levers to remove and install oxygen sensors and vacuum switches on vehicles, even if you don'for t have a lot of automotive work This tool saves you for time ● Materials are constructed of high performance chrome steel construction for strength and durability with a black oxide finish to rust ● Design standards feature a low profile and slotted design that allows you to remove the oxygen sensors while still connecting the harness, and the socket is offset and compact to provide for extra leverage even in hard-to-reach locations ● The is please rest assured to buy, Manufacturer: XIAOQENAN