The adjustable wrench is versatile as it has 2 reversible sockets and a third for other uses. The two reversible sockets measure 17mm, 19mm, 21mm and 23mm. The 3rd drive socket takes 1/2" sockets. The soft grip handle extends from 355mm to 540mm to provide extra leverage for loosening stuck wheel nuts p> Strong, durable and small enough to fit in the boot