Small, tan, rectangular (plastic?) block in our fully fenced backyard. Slightly concave on 2 of the long sides. Looks like soap or processed beeswax but is much harder.

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Our dog was chewing on this in our fully-fenced backyard. Really, really hoping it’s not poisonous.

​Small, tan, rectangular (plastic?) block in our fully fenced backyard. Slightly concave on 2 of the long sides. Looks like soap or processed beeswax but is much harder.