Stuff with a used 2 liter size bottle for tons of fun! Pocket on bottom of toy allows you to insert a 2 liter bottle for your pooch to crunch, hug, kick, and toss. Dogs love to CRUNCH, CHRUCH, CRUNCH! Fido will love these fun jungle friends and you'll love the fun they have! Bonus, this toy can also be used as a no stuffing toy!