Not recommended for a Hard biting Chewer

My 18 Year old son has Autism and constantly bites the outside of his hands if he doesn’t have a chewy. I got these to try as we have been trying other chews and nothing seems to last longer than a week. My son bites hard and broke through both of these within a couple of days. I can’t say they are not recommended, but I assume it just depends on how hard the chewer bites.

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