These are some empty box for dog scent training use, made of premium and safe aluminum material. These box can be safely used for fun nose training for your dogs. Place different odor inside,or you can put different treats them to find. Features - Color: As Shown - Material:Aluminum - Size: 6.80X6.80X3.50cm/2.67X2.67X1.38in - Capacity: About 80ml -The owner can hide food or put different odors to encourage your pet to sniff them. -The dog searches for the root of the food according to the smell, and plays with the empty box. -With a bright appearance, the scenting training tool is abrasion and bite resistant, practical for use. -It can be a practical and thoughtful present to your friends who have pets, and they will be happy. -Some of the dog activities tools to add fun scent games to your dog's behaviors and help her harness this smell. Package list: 10 Scent Training Boxes