Bolt truck receiver hitch lock just using your trucks ignition key. No need to carry 30-40 keys, 5/8's pin for class 2-3-4-5 truck receiver. Good hitches are expensive, everyone wants one but they aren't getting mine. I have a hitch on my truck most of the time. Bolt locks are great, I have the trailer coupler lock, pad locks for my toy hauler, cable locks for my ATV's and now I have receiver hitch locks. I was wearing out my pants pockets with all my other keys. https://www.boltlock.com/ #MrTruckReviews #Trailering https://mrtruck.com/ https://store.mrtruck.com/ only carry one key for locks