Craftsman 11 piece Metric Socket Wrench Set comes with nine sockets of varying sizes (5, 6, 7, 8, 9, 10, 11, 12 and 13 mm), a 1/4 inch drive ratchet and a 1-1/2 inch extension bar all neatly organized in a durable black plastic case, which clearly marks the socket sizes in easy to read raised numerals.