15 x Impact Socket. 6-point socket design. Deep depth. 15 sockets: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 mm. Just as picture show. Storage case. High-contrast permanent laser etched size markings are easy-to-read, even in low light.