My pup loves the reef ball! He freaking loves how bouncy it is, and the grooves give it an inconsistent bounce which is always keeping him on his toes... or paws?😂 My favorite part of the ball is the rubber material. So far, the material has held up to his Akita chomp and its super easy to clean! I either rinse it in the sink or with the hose. If anybody loves playing fetch with there pup, I would 100% recommend this ball!