These non-quick release skewers require a special Allen wrench (included) to open, thus stopping most casual wheel thieves. Sold in pairs. Extra keys are available here.
Note: compatible with frame spacing from 127mm to 135mm. Due to different spacings, you may need to trim excess off the skewer.
I have used these skewers for a few years now. This is the second time I have purchased them. I think they are high enough quality, but more affordable than other anti-theft skewer options, which is why I like them.
These are great. Good price. Not overly complicated.
Third set I’ve bought. Great quality and wicked useful.