Dunlop Straplok Black Flush Mount

I'm not a fan of strap-lock buttons. Honestly, I prefer the "clip lock" strap solutions.
However, this set in particular has found a way into my heart.

The looks are amazing: you'll be able to find a perfect match to the hardware on your axe.
It is sturdy: it will stay in place no matter what.
It is easy to use: just press and attach... press and detach. Virtually, dummy proof.

It might be a little tricky to install, for on most situations you will have to trim the holes on your favourite strap. But other than that, it's just fine: place and attach the pressure-washer.

One thing that turns me down about strap-lock buttons is the size of them. However, Dunlop has tackled this issue by designing a female button that goes INTO your instrument! So, the end of it stays flush with the edges of your guitar or bass.
Yes, you have the inconvenience of having to drill the wholes a bit wider, but that's an fairly easy (albeit messy) job and once installed, you just forget everything about it.

I strongly recommend it!

Installed a set of these straploks on a customer bass, for the first time.
I like the fact they're virtually invisible once the strap is off but they require some pretty big hole in the horn of the instrument... if you put them on a thick finish body you're probably going to need some very good forstner drill bit to avoid tearing.
You'll also need a caliper to make the hole as deep as requested and not more!
I wouldn't leave an unexperienced player install these straploks on a decent instrument for sure.
The finish is good, though, and if you're sure you can live with straploks for your whole life, they can be a good choice.