- Sku: MK9 Rumble Ball
Rumble Ball
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Perfect Size for Medium to Large Dogs
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Made in USA: Forged in Erie, PA, with premium American-made natural rubber. Portion of every purchase goes to Project K9 hero — "Protect Those Who Protect Us"
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Max Durability for Aggressive Chewers: Over 500,000 sold. For dogs who shred everything else. Our proprietary rubber compound is solid-core, industrial-strength, and tear, puncture, and chew resistant—yet soft and flexible for safe chewing.
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Trusted by K9s: Known for their extreme durability, Monster K9 toys are a go-to choice among police and military K9s worldwide.
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Safety You Can Trust: Trust in food-safe, toxin-free natural rubber, compounded in the USA. 3rd party tested, CPSIA approved, and designed to prevent sharp edges and splintering. Dishwasher safe for easy cleaning.
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Lifetime Quality Guarantee: Built to last. Backed for life. If your toy doesn’t hold up or meet your expectations for toughness, we’ll give you a refund or one-time replacement—no BS and no fine print. Unmatched durability is our promise. Satisfaction guaranteed.
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Rumble Ball
MEET OUR RESIDENT VET!
Amanda Smith — veterinary expert
The Chameleon has a resident veterinarian, Adam Smith. He supports animal charities and shares his knowledge of pet care. As a full-time veterinarian, Adam knows what cats need to be healthy.
What your pets need, when they need it 😺
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