DOG TOY FOR LAND OR WATER PLAY: The Amphibious Roller is 2.5 inches wide and 4.5 inches across creating a new way to play fetch on the pool, beach, or lake; Perfect for water-loving canines, it was made to satisfy their natural chase instincts in land or water CHUCKIT! AMPHIBIOUS LINE: Featuring a lightweight EVA foam core, the Chuckit Amphibious line of dog toys float high on the water and won't pop or sink, all while being gentle on your dog's teeth as they fetch the ball SUPER BRIGHT: Featuring a high contrast, soft but durable nylon shell, the Amphibious Roller can withstand the harshest fetch conditions CHUCKIT! FETCH TOYS: Chuckit! makes toys that enrich the human animal bond and helps dogs and puppies stay engaged; Try our full line of ball launchers, bouncy balls, frisbees, indoor dog toys, glow toys and more JUST FOR PETS: Petmate makes a variety of pet products for dogs, cats, birds, and other furry friends; Check out our brands such as Aspen Pet, Arm & Hammer, Booda, Chuckit, and more