·  Complete size selection with even micro size hex keys for watch repair, etc.
·  Portable packaging
·  Case can be hung for storage or display
·  Packaging designed to fully protect hex key from loss
·  Environmentally save
·  Specially set up knob for easy case opening/closing
·  Exceptionally designed clips for stable storage
·  Clear marking for an easy usage
·  Long arm design in inch size and short arm design in metric size for easy recognition