The Sumind Catnip Toy Edible Balls Rotatable Catnip Ball Cat Toy 4-1 Removable Catnip Edible Balls Licking Toys for Cats Kitten Kitty is a great way to keep your cat entertained. Made of natural catnip and silvervine, these toys are safe for your cat to play with and will bring a smile to their face. The base of the toy is equipped with double-sided adhesive so the balls can be removed and pasted to any surface.