VEVOR Trailer Hitch Lock Kit, Fits for 1-7/8 in, 2 in, 2-5/16 in Couplers, Heavy-Duty Anti-Theft Trailer Ball Lock with Keys, Prying-Resistant, Adjustable Height Design for RVs, Boats, TrailersCoupler Lock Combination SetStrong CompatibilityAnti-Pry & Jam-ResistantPremium Material for Lasting UseWide ApplicationSmooth Locking & Unlocking OperationLock Body Material: Aluminum Alloy,Lock Beam Material: Carbon Steel,Item Model Number: HS-OHS01-L,Quantity: Combination Set,Locking Method: Key,Net Weight: 2.87 lbs/1.3 kg,Applicable Coupler Size: 1-7/8 in, 2 in, 2-5/16 in,Product Size: 7.6 x 5.51 x 2.76 in/193 x 140 x 70 mm