Yeowww! Catnip Cat Balls - 3 pack will have your kitty bouncing off the walls! All three 2" diameter balls are filled to the brim with 100% premium, organically grown catnip, no filler or toy-grade catnip. The cotton twill fabric is durable and can withstand your cats energetic play. If it does happen to split open, catnip is completely safe for your cat, and the toy can be refilled and sewn back up. Catnip has the best effects on cats over the age of 8 weeks. Made in the USA.