22 piece, combination inch, metric bright extra long ballhexl key set Includes 050 in, 15 mm, 116 in, 14 in, 18 in, 10 mm, 2 mm, 25 mm, 3 mm, 316 in, 332 in, 38 in, 4 mm, 5 mm, 516 in, 532 in, 564 in, 6 mm, 732 in, 764 in, 8 mm, 964 in Made of 8650 chrome nickel alloy steel, black oxide finish to resist rust, corners are sharp, clean