Tornado Puzzle is a level 2 dog puzzle from Nina Ottosson of Outward Hound.
 
Problem solving skills
Feeds natural foraging behaviours / instincts
Mental and physical stimulation
Slow feeding
Boredom buster
Easy to clean
Suitable for dogs of all ages 
 
Perfect for dry dog food, kibble, treats, wet food and raw food. Can even be put in freezer  
Remember to supervise where needed.