The adjustable wrench is multi-purpose as it has 2 reversible drive sockets and a third for other inserts The two reversible sockets measure 17mm, 19mm, 21mm and 23mm. The 3rd drive socket takes 1/2" inserts. The soft grip extends from 355mm to 540mm to provide extra leverage for freeing tight lug nuts Strong, durable and small enough to fit in the trunk