Catnip is an aromatic herb whose scent cats simply adore. A simple but very effective toy decorated with long feathers will entertain both a small kitten and an adult cat for hours and awaken its hunting instinct. Ball size 5cm. Catnip is an aromatic herb whose scent cats simply adore. A simple but very effective toy decorated with long feathers will entertain both a small kitten and an adult cat for hours and awaken its hunting instinct. Ball size 5cm.