I'm not sure where I got these 2 pieces from, and I'm wondering what are they, and which brand they belong to.
They are LEGO-compatible, but definitely not genuine LEGO.
There are no identifying marks.
Here are some photos:
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Sign up to join this communityThose look like Best-lock bricks.
The red looks to be lighter and more-transparent, like Best-lock bricks do compared to Lego.
The studs have no markings.
The 1/2/5 looks like the ones found in Best-lock sets, like this one.