The Link works great as an interactive toy for your pup as they can see their treats thru the translucent design, and smell their treats throughout the openings of this fun creation. The Link also works fantastic as a slow feeder for those who inhale their food! Specifically designed to be linked together there are endless options and levels of difficulties the Link can be transformed into. As and added bonus it smells like mint, and floats! Link will be sure to keep your pups busy as they throw and toss it around trying to get their favorite treats or kibble out. Orbee-tuff toys are made in the USA, non-toxic, durable, and recyclable.