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

These work fast and the cable holder is really worth it for convenience. It's not a complete LOCKDOWN for your guitar strap and if you really pull hard (I mean very hard) it will come of the button. BUT, these go on really fast and simple and come off easily ONLY when you want them to (not by accident).The cord handler is a really handy thing to have. I use it with almost any size cord and my wireless guitar cord from the transmitter which I clip to the guitar strap. Works great!These are super hard yet stiff flexible clip for a super price. Getting them on and off is a 3 minute learned curve. You'll be amazed no one else thought of this. I did NOT have to change my guitar Buttons at all. I use a leather strap that's not super thick but it still fits nice and tight and does NOT slip off the guitar. Hope yours work as well as mine. I have also used one in front / top of my guitar for my headphone wire - it's also VERY handy and more organized when needed.

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.

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.

These are very useful but they can be a little difficult to use with thicker leather straps. Otherwise they work exactly as expected and the cable holder guide can be very useful. If I could give it 4.5 Stars instead of just four or five, that would be my rating simply because of the difficulty in using them with thick straps. For normal straps, they are probably perfect.

These are amazing. Saved my ukulele from falling and hitting the ground couldn't live without them now

Works well without replacing hardware. And the price is right.

These are great at locking a strap in place, but it is difficult to attach the cable. For thinner cables it is okay, but for thicker cables it takes a lot of fiddling to mash it into the holder. It is much quicker and easier to just loop the cable through the strap.

I figured I would try these out. They work great.