The Mad Cat? Pouncin' Prawn Cat Toy with Catnip & Silvervine is an adorable plush-filled cat toy with a unique blend of premium catnip and silvervine that's maximum potency, pure, and pesticide free. Silvervine is an all-natural catnip alternative cats love; it elicits a similar reaction and works for many cats not affected by catnip. Some cats LOVE catnip, but not all cats are affected by it. To solve this problem, we developed our unique blend of catnip and silvervine. Silvervine is a non-toxic, all-natural catnip alternative that many cats prefer. This potent stimulant elicits a similar reaction to catnip and is safe and fun. Made of soft, high-quality plush with fun accents like string, crinkle, and embroidery. Great for tossing, batting, kicking, and cuddling.