If have to be parted from your bike an you worry about theft Pitlock locking skewers are for you.  Unlike many other "locking" skewers on the market Pitlock skewers are actually keyed.  The free rotating housing and deep socket means that Pitlock skewers will not come off with anything but the correct key.  Each set comes with a matching key and Pitlock.  The skewers are made of CNC-machined stainless steel.  They are very strong, very durable, and very secure.

Made in Germany