Reddit mentions of 5 Inches Large Size Dog Treat Ball Dispenser for Large Dogs Made of Environmental and Non-Toxic Bite Resistant Material.

or

Fill the ball with your dog’s favorite treats and teach them to roll it around, treats will fall out to reward them for being active.Made of environmental and non-toxic material, can directly contact with food, Harmless for your dogs as they play.Ideal for medium to large sized dogs. Not recommended for strong aggressive dogs and heavy chewer.NOT A CHEW BALL.Our treat ball dispenser can keep your dog mentally stimulated, physically active, healthy feeding and fun feeder.Our treat ball with the bright pink color and unique Vanilla fragrance, it’s easy to arouse the interest of your dogs.