Bicycle Tutor

The axles on my daughter's Bianchi Broadway bicycle have On Guard Locking Skewers and take a special tool to remove the front and rear wheels and the seat.

   

Does anyone know if all On Guard Locking Skewers are the same, so if I order a new set of skewers the key will work?

Where can I order a tool so we can remove the wheels for servicing?

Thanks in advance.