Treat for rodents Prevents boredom Ideal snack or reward Natural way to sharpen teeth Medium corn cob mix 3 coulours rodent treat Snack Time! These delicious duvoplus corn cobs are sure to make your rodent happy. Corn cobs are a perfect treat for rodents. They are a natural way to sharpen their teeth and help to prevent boredom. Just don't overdo it! :-) Snacks should be offered alongside your rodent's daily menu to offer some variety. Manual Snacks are intended as a supplement and to add variety to your rodent's daily menu.