The Beta Tools Metric 9-pc Hex Key Wrench Set, No. 96/SC9, comes in a hinged case. When the case is closed, the tools are secured in place. By lifting the latch to open the case, the hex key wrenches can be removed individually. The set includes 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm and 10mm hex keys.