Hartz Cattraction Crinkle Mice bring out the hunter in your cat with a pack of 10 mice. These cat toys are great for multi-cat households or for single cats that can’t get enough. With the combination of Silver Vine & Catnip, Cattraction toys stimulate livelier play than compared to catnip alone. Silver Vine is a vine that grows in the high mountainous regions of East Asia, and is a 100% natural cat attractant that can grab and hold your cat’s attention for enhanced playtime. CONTAINS: 10 crinkle mice cat toys that contain a combination of silver vine & catnip SILVER VINE & CATNIP: 100% natural cat attractants – Silver Vine promotes livelier play among more cats compared to catnip alone LIVELIER PLAY: Stimulate livelier play with the combination of silver vine and catnip to grab and hold your cat’s attention more for play and interaction PLAY PATTERN: Exercise your cat's natural instincts to explore and hunt with toys that stimulate all of their natural play needs FOR CATS OF ALL AGES: Non-toxic, natural and safe for cats of all ages