Bacillus subtilis PB6 Probiotic technology enables beneficial bacteria to travel through the complete GI tract for optimal stomach and intestinal balance

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Lactobacillus Acidophilus

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Pet Qwerks Wishbone BarkBone - Nylon Chew Toy for Aggressive Chewers - Bacon Flavor Size:Small Bacillus subtilis PB6 Probiotic technologyBarkBone Nylon Wishbone Dog Bones are designed with a more natural shape, allowing your dog to easily hold and chew for plenty of fun. Happy chewing! Delicious bacon flavor infused to the core of every bone, releasing long lasting flavor & scent as your dog chews. Made with premium artisan nylon, these dog bones work best for determined & aggressive chewers. Pet Qwerk BarkBone chewing style varies by material, for moderate chewers look for BarkBones