You can get them at most places that sell Merrick food. I get mine from PetSupermarket. You can do a store search on the Merrick website. PetSmart and Pet Co don't sell Merrick. Good luck!
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"If you have men who will exclude any of God’s creatures from the shelter of compassion and pity, you will have men who will deal likewise with their fellow men." — St. Francis of Assisi, 1181-1226