All of these chin boxes are made with thick, long lasting 3/4 unfinished pine. The boards are joined together using FDA approved non-toxic glue and wooden biscuits. As a result, these chin boxes are very strong, but more importantly, they contain no metal that can chip a tooth. And, as the wood is chewed down, there are no exposed nails or screw heads to snag the chin as it jumps onto and off of the box.
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