The OurPets® Catnip Gel Toy Refill Tube has the essence of loose catnip without the mess. Refill the toy with the catnip gel for stimulating play. OurPets® Catnip Gel is 100% safe, natural, and made with premium USA and North-American-grown catnip. This gel can also be applied to scratchers and other toys to encourage use! Cats love catnip, but cleaning up after the fun can be a chore. Give your cats the treat they deserve without the mess.