Cat toys with a combination of natural attractants. For livelier play! Silver Vine is a vine that grows in the high, mountainous regions of eastern Asia. It produces a natural and effective cat attractant, that stimulates livelier play in more cats when compared to Catnip alone. Cats respond more intensely to Silver Vine vs. Catnip. The combination of Silver Vine and Catnip is most effective, with more than 90% of cats responding. - Dr. Sebastiaan Bol, PH.D., in BMC Veterinary Research. Our plush yet durable Animal Pal Kicker Cat Toy is captivating and full of goodies that cats enjoy: crinkle, string, feathers and bling. The Animal Pal Kicker is designed with contours that promote hugging and kicking for extended periods of play and exercise. Containing natural yet potent Silver Vine and Catnip Attractants, this captivating toy grabs and holds your cat’s attention for livelier playtime fun. hartz.com/cattraction. hartz.com. Facebook. Instagram. For more information & research results see hartz.com/cattraction. Made in China.