SAE/Metric/Torx Combination Fold Up Key Set, Plastic, 24-In-1, Includes: 25911, 25171 & 25581, Sizes Marked On Handle, Flat Spring In Case Bottom Holds Keys At Any Angle, 8650 Chrome Nickel Alloy Steel Drawn To Tolerance Of Plus .000/Minus.001, Hex Corners Are Sharp & Clean.