HOOK TYPE SPANNER FOR THE CYLINDER GLAND NUTS. MADE BY WILLIAMS WHICH MEANS IT IS 100 PERCENT MADE IN AMERICA. IT IS ADJUSTABLE WITH A CAPACITY RANGE OF 2" TO 4-3/4" AND HAS A BLACK OXIDE FINISH. THE HOOK HAS A DEPTH OF 3/16" AND THE LENGTH OF THE WRENCH IS 11-3/8". MADE IN THE USA