Straplocks for your guitar using the same system Schaller uses.
These are pretty much the same shape as schaller straplocks, however the dimensions are slightly different so they're not interchangeable.
The finish is a bit sloppy, but they're a fraction of the price of schallers, so I can live with that. They still come with little rubber pads, as not to damage the finish of the guitar.
It came with two of the same screws. One fit the neck of an Gibson SG Faded 2015 without problems (no hitting the truss rod). The screw at the bridge side was smaller and shorter than the original screw, and the original screw is too wide for the hole of the lock. But using the included screw, it seems to sit pretty tight regardless.
I would probably buy these again, should I need them for another guitar and would definitely recommend these.