high quality Easy to Installremove your old defect locking cam from truck lock at first; 2nd clear off the rust stains from original t-lock rods; 3rd install the locking cam correctly and tighten the screws.Designed Function: These camper shell T-handle locks locking cam designed to well replace your no-working Truck Cap locks cam, we offer L&R pair locking cam.Material/PackageThe truck topper t-handle locking cam is made of durable steel with zinc plating, ensure long lasting. Package includes: 2*locking cam, 2*cam fix bolts.L&R Locking Cam OnlyDimensionThe locking cam is 2-3/4 length, universal construction for most brand trucks & trailers lock, as long as their rear cap t-lock rod is 5/16 square, for more details dimension as image-3. Recommend check the size is fit your truck cap locks before purchase.Use/NoteVertical=unlock; Horizontal=lock; Left truck T-lock=rotate counterclockwise 90 degree to lock on & reverse operation unlocking; Right truck T-lock=rotate clockwise 90 degree to lock on & reverse operation unlocking.