The Eastman 45041 Plumber Socket Set is a complete 5 piece socket set which also includes a bar handle. Each of the sockets has two-sided wrenches to use for various nut sizes. The sizes of the sockets are 21/32-inch, 27/32-inch, 29/32-inch, 31/32-inch, 1-1/32-inch, 1-3/2-inch, 1-5/32-inch, 1-9/32-inch, 1-11/32-inch, 1-7/16-inch. The Eastman Plumber's socket set is used to remove and install shower and tub fittings and nuts. The engraved sizing of each socket helps in quick and easy wrench selection. A must plumbing socket wrench set for professional plumbers.