HIPPIH Dog Puzzle Toy 2 Pack Interactive Dog Toys for Treat Dispensing Durable Puppy Toys for Teething Dog Treat Ball for Teeth/Slow Feeder/IQ Training/Playing Blue-2.75‘’ Green-3.14‘’

EASY TO USE: You can use dry food wet food or peanut butter to put in the gap of the green dog tooth ball (the size of the dog food is preferably 0.2-0.6in); you can also use dry food to put on the blue treat dispensing ball. When your dog chases the blue treat ball the food will slowly fall out to attract your dog's attention (the size of the food is preferably 0.5-0.8in).