Tulio Campagnolo hadn't bargained on thieves when he revolutionised cycling with his wheel quick-release. While not a security device, these Allen skewers will prevent opportunist tea leaves from whipping off your wheels when you stop off at the supermarket.
Offered in a choice of standard (130mm, for road bikes) and extra long (135mm, for mountain bikes and tourers), these chromoly steel rods differ from cheaper models thanks to stainless steel tab nuts.
These eliminate the need to hold the opposite end cap with a spanner when tightening/releasing the 5mm Allen bolts, making them more convenient and surprisingly nice to use
There's a 13mm cone recess should the cam fail, so you'll always be able to remove your wheels, and serrated nuts offer excellent purchase against frame/fork ends.
They could also be used on a time trial bike to reduce drag and we recently used the front one to convert a road TT wheel for use on the velodrome where traditional lever skewers aren’t allowed for safety reasons.
The gold test samples were a bit gaudy, but there's the option of black anodised or white powder coated finishes. They weigh 72g.