D'Addario Dual-Lock Guitar Strap Lock - Guitar Strap Locks Set - Protect Your Instrument with No Modifications or Hardware - Secures Cables - Easy to Attach - 1 Pair,Black

After a strap inexplicably came loose I determined I need to have some kind of locking system. I thought about locking mechanisms (button and strap attachment), and while most of them had mostly good reviews, the ones I read about sudden failure concerned me. I tried the old-school rubber washers, but they frequently popped off the button unexpectedly. These locks are inexpensive and fail-proof. With a little practice they are easy to use - put the large hole over the button and push down and back on the protruding part at the top - it pops right in. To remove, grab the two "ears" with thumb and index and lift up while you push forward - come right off. I usually keep the strap on the guitar, but I take off the lock nearest the bridge which has the cord snugly through it. The lock stays on the cord, and when I use the guitar again, and plug in the cord and attach the clip. No matter how hard I pull, I can't pull the leather strap off over the button, but I don't even think of them as locks any more. The one near the neck just stay on with the strap, and the one near the bridge I just think of as cord clip, which gets put on the guitar when I plug in, but which has the added benefit of securing the strap.

Works great. I feel more comfortable about having my guitar hanging on my shoulders without it falling. Seems to be locked in place pretty well. Just know if you have thicker straps it may be harder to put the lock on. Had a hard time with one of my guitars. Hope this helps.

These are the only thing I can think of for my guitars that I would say is "Perfection Achieved"

These are good but a little tricky! The cable part kind of sucks but the idea works

These do exactly what they say they will. They are also super cheap for what they are. I like having the cable clip on them as well. They don't work great on super shielded thick cables, but I have only come across one cable that has given me an issue with popping out of the little clip. I have them on 3 guitars that always have straps and am planning on buying even more for the rest of my guitars. As far as the security of the strap goes, I haven't knocked one off yet, and I am rough with my guitars.

These D'Addario strap locks are a super easy way to keep your guitar strap secure. No need to mess with your guitar's hardware, which is pretty cool. They fit snugly, so you don't have to worry about your guitar taking a dive during a gig or practice. Basically, they're a simple and effective way to keep your instrument safe without modifying your guitar.

Did not fit on my SG Custom Ebony with a Levy MSSR80 2" Rayon Webbing Guitar Strap with Leather Ends. The leather ends of the strap is too thick, preventing adequate installation. I cannot give this more than 3-stars, as I'm sure the straps would work for thinner strap ends, but as it is, cannot work for me.

They're pretty awesome and cheap !I jumped a bunch with them and they wouldn't snap !