"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. Pieces qty. 1, Standard Compatibility Yes, SAE Socket Size in. 3/8-1 1/4, Mounting Type Drawer, hanging, Deep Well Compatibility Yes, Storage Type Tray, Measurement Type Standard SAE, Socket Capacity qty. 28, Drive in. 1/2."