Color: mixed colors Size: 7.9 inches / 20 cm, 5.9 inches / 15 cm Sniffing ball is a good mental and physical exercise pet toys. Makes eating more fun for dogs, can be used to help pets relieve stress, effectively reduces the incidence of destructive behavior, and is a great confined toy. interactive feeding dog toys ball： 1. The main fabric of the sniff ball is environmentally friendly polar fleece, which is soft and skin-friendly, environmentally friendly and easy to clean, and supports machine washing. 2. The sniffing ball is an upgraded version of the traditional sniffing pad, and it is more difficult for dogs to get food. Therefore, the first time a dog uses a sniffing ball, the food should be placed on the edge of the ball where it is easy to find. Knowing that there is food hidden in the ball, you can put the food in the ball to moderately increase the difficulty of foraging for the dog. 3. The sniffing ball is made of many folded circles and has many deep mouths. The owner can hide food between the folds of the fabric to encourage your pet to sniff them. 4. The difficulty of searching for food is becoming more difficult. The dog searches for the root of the food according to the smell, and plays with the ball while eating. 5. Easy to store, small in size, the smaller the sphere, the more hidden the food and the greater the difficulty. It is a great educational toy.