This spice rack is meant to be mounted to a wall or cabinet door. It's designed for bottles with a square base of 45 by 45 mm, which I bought from Amazon.

The x1 Version is a holder for a single bottle the x3 version is a rack for three bottles.

It can be printed without support. I've been using PLA+ though, if you can print without too much stringing I'd recommend PETG. Since it's designed to be hanging inside a kitchen cabinet, something is bound to bump against it sooner or later and standard PLA might not hold up. Though PLA should of course work perfectly fine otherwise.