This foldable, pocket-size Hex Key Set has 7 sizes of Metric hex keys. The set includes 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm sizes to accommodate a variety of assembly and disassembly jobs. Each of these hex keys are constructed of durable chrome vanadium steel inside a chrome steel handle. Find the right sized hex key quickly with this compact set!