Recently purchased a bunch of fake hollow resin rocks to use as hides, so I'm getting rid of these.
They're real rocks I picked out for looking good and being stackable into hides. They've been sprayed with a non-toxic varnish so the porous rocks are easy to clean. This means they probably shouldn't be used underwater, but would be great for a reptile display enclosure or terrarium.
Totally free if you come pick them up. They're heavy enough so I'm not even trying to carry them to my LFS to give back. The largest is approximately 12''x12''x12'', and is a pretty cool hide cave thing.
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(Please ignore attached vivarium image. Uploaded it by accident and don't know how to remove.)