7In1, Metric, Small, Fold Up, Hex Key Set, Includes 15MM, 2MM, 2,5MM, 3MM, 4MM, 5MM 6MM, Sizes Are Clearly Marked On The Handle For Easy Identification, Keys Are Held In Any Work Position Or Angle By A Flat Spring In The Bottom Of The Case, Made From 8650 Chrome Nickel Alloy Steel Drawn To A Tolerance Of Plus 000Minus 001, Hex Corners Are Sharp Clean