Leo - Assorted Colors - Named in honor of genius Leonardo da Vinci, Leo marks a renaissance in dog toy design! On its own Leo is a great bouncing, fetching, tugging and challenging treat-dispensing toy. You can also link multiple Leo toys together! When the toys from Durango are connected, the treats inside can move from one toy to another. Design puzzles specifically for your dog's individual problem-solving level. Completely hollow, and made from a durable and irresistibly chewy space-age material, Leo from Canine Genius is loads of fun. Large, medium, and small dogs love playing with Leo! Assorted Colors.