Sustainable, package-free, and colored with eco-friendly dyes, our dog toy balls are perfect both as indoor and outdoor toys. Our Set of 2 Dog Toy Balls comes in 3 color combinations - LAVA, OCEAN, ROCK - and four different sizes: The ROCK set of 2 Dog Toy Balls - one brown ball and one marble (white) ball - comes in 4 sizes: - Small: 2" diameter - for small dogs - Medium: 2.5" diameter - for medium dogs (slightly smaller than a tennis ball) - Large: 3" diameter - for large dogs (slightly larger than a baseball) - Extra Large: 3.5" diameter - for extra-large dogs Made of densely felted, 100% premium wool, our eco-friendly toys are non-toxic and odor-resistant. The natural, digestible fibers assist with teeth cleaning and promise endless games of fetch. They're durable, safe, and unlike tennis balls and other synthetic pet toys, they are recyclable AND compostable at the end of their lifespan. Say goodbye to tiny plastic pieces and polyester filling on rugs and lawns!