D'Addario Flex Lock Strap Blocks - Locks Straps In Place - Protect Your Instrument with No Modifications or Hardware - Easy to Attach - Set of 4 Blocks - Red

I had a new strap on my expensive new guitar that kept on popping off. These little rubber do dad’s did the trick. Haven’t had an issue since putting these on love it.

Work really good. I haven't put them to the test during the same kind of live performance I would do in my younger days, but they seem like you'd have to try your guts out to yank the strap off of the guitar.

Been playing guitar for 45 years, and never heard of these. Tim Lerch demonstrated a similar concept using the rubber washer from a bottle of Grolsh beer. These work great, are totally removable. Love them,

They do what they should!

So far these have been great. I want sure if I would regret not just installing actual strap locks but so far these haven't fallen off or given me any problems, even on my very heavy 5 string bass.

I buy, sell and trade guitars often. Mostly high end name brands. For years I have been installing permanent strap locks on all my guitars, which generally involves drilling a bigger hole for the locks and attaching the other ends to my straps. But when I sell the guitars it is difficult to put the original strap buttons back on because the holes are too large unless I fill the holes with glue and tooth picks and then re-drill the hole so I usually leave them installed and also include the strap section so the buyer has the whole set. Those are fairly expensive and not something that increases the resale value of the guitar, so I take a small loss on the strap locks. A few years ago I discovered these washer type strap locks and they have worked great since, with no modifications needed to my guitars. I no longer jump around like Chuck Berry or George Thorogood on stage, ( age related aches and pains from years of wild stage antics) so i don't worry that these strap locks would pop off. If I was more energetic I don't know if I would expect these to hold up, hence the 4 star rating, but for the past few years of using these, I never dropped a guitar or had one pop off. These are on all my guitars now.

If you don’t have a locking strap, these babies are a must have!!! Until you’ve had your strap fall off mid gig, you don’t know the terror of that occurring. You can avoid all of that with this product. Super easy to use. They come in a 4 pack so you can pop them on a couple guitars at a time. Built with sturdy rubber, I don’t think these blocks are falling apart, you’ll end up losing them before anything. Great design, they seem to fit on all guitars for the most part. They fit my acoustic, my bass and my guitars effortlessly and they’re not loose at all. Highly recommended!

It does just what it is supposed to. Keeps my guitar strap on.