HKM-111251 Interactive Sniffing Puzzle Training Toy for Dogs - Reward Bin and Slider Design, Durable ABS MaterialIntroducing the HKM 111251 Interactive Sniffing Puzzle Training Toy for Dogs, a perfect blend of fun and skill development for your canine companion. Crafted from durable ABS material, this toy is designed to withstand the enthusiastic play of dogs while offering an engaging sniffing and gnawing experience. The unique reward bin and slider design allows you to add your dog's favorite snacks or dog food easily. Here's how it works: fill the reward bin