These skewers are Giant branded DT Swiss RWS.  Photos are of open skewers, but you'll receive some that are new in packaging as the last photo shows.  These skewers ratchet tight (pulling out the lever) vs flipping like a normal QR skewer.  

Front Skewer for 100mm Spacing

Rear Skewer for 130mm Spacing.

Skewers are compatible with bikes with 130mm rear spacing, this includes some road, triathlon, TT and fixie bikes.

The handles between the front and rear are slightly different.  My guess is that Giant had them made this way..  I don't see an easy way to swap the levers.