"Grip socket tray is designed to keep sockets organized and readily available for use. Heavy-duty molded plastic tray with 1/2in.-drive stubs for both shallow and deep sockets. Holds up to 28 SAE sockets from 3/8in. through 1 1/4in. Drive in. 1/2, Pieces qty. 1, Deep Well Compatibility Yes, Measurement Type Standard SAE, Standard Compatibility Yes, Socket Capacity qty. 28, Storage Type Tray, Mounting Type Drawer, hanging, SAE Socket Size in. 3/8-1 1/4."