Instincts by SmartyKat Mouser Mayhem set of 2 releases your cat's inner instincts with HappyNip Silvervine and Catnip-shaped mice. HappyNip Silvervine and Catnip blend is an extra-exciting natural cat attractant. Cats who don't react to catnip will have a reaction to HappyNip, making it the perfect blend to entertain your little hunter. Encouraging your cat to frolic, romp and play! SmartyKat creates stylish cat products that help pet owners easily meet their cats' emotional, physical, and instinctual needs. Each product is designed to fulfill a particular feline need while fostering a stronger relationship between you and your cat. From scratchers and interactive toys to edible grass and catnip, SmartyKat keeps your feline companion's health, safety, and well-being at the core of everything we make. Giving pet parents the best of all worlds: innovative products, stylish designs, environmental responsibility, and affordability all in one place, satisfaction guaranteed! If, for any reason, you are dissatisfied with our product, please reach out to our customer service team at: customerservice@worldwise.com (email) or 415-721-7400 (phone). Please read all packaging instructions, warnings and cautions upon receipt. Packaging may contain small parts, discard after opening.