This is for one Genuine Proto 1-7/16" 8 Point Impact Socket, several of these were purchased from a retail business that supplied equipment to gas drilling companies that went out of business, these are genuine Proto sockets, they are designed for square-headed bolts and nuts, they are for heavy-duty use with a 1" drive. Model #10023S, made in the United States. This socket is specifically designed for impact applications, making it a reliable tool for industrial tasks. discounts for more than one purhased. Fast Shipping