This is a for samll dog toy of puzzle/slow food /interactive play.The toy special inner structure controls the eating speed of your pets and great for dogs digestion. When the slow food toy is pushed by pets, it will roll and then leak out snacks and the toy will attract dogs' attention for toy and crazy about it.The interactive chase toy combine puzzle with food treat dispensing. The pet pushes it in order to get food ,will increase pets intelligence.Best dog giftsSpecifications: Size:5.6*3.1*3.1 inches Product Weight:0.39 lbs Shape: Barbell Pet Size：under 50 lbs Product Characteristics：slow food /interactive play/puzzle for samll dog Importance：This toy is not suitable for aggressive dog！ [Attract dogs' attention]:This is an interesting toy for small dogs,It has the function of both slow food and interactive play，The toy special inner structure controls the eating speed of your pets and great for dogs digestion. Just fill the toy with your dogs favorite treats, when the slow food toy is pushed by pets, it will roll and then leak out snacks and the toy will attract dogs' attention for toy and crazy about it.[Increase pets intelligence]:The interactive chase toy combine puzzle with food treat dispensing.The pet pushes it in order to get food ,will increase pets intelligence.This is a perfect dog stuff.[Prolonged play]:The dog treat dispensing toy is designed to limit the amount of treats your dog gets while encouraging more extended playtime. This is intended for supervised playtime for pets and is not a chewed toy.[Easy to use]:The interactive toy can add treats easily which is disassembles design.[Material upgrade]:The dog interactive chase toys made of ABS ,which is sturdy. TYPE is a kind of soft rubber roller which is more silent when rolling. Do not leave toys with unsupervised pets. Remove and replace toy if damaged. And If the product has quality problems, we provide a lifetime return service.