This was one of the first toys I purchased for my adopted 4 year old Doberman Pinscher. It has been chewed, and chewed, and chewed some more. This is one of his 3 favorite toys when he has to go in his crate. As of yet there are no significant teeth marks, holes, or missing pieces. It is solid rubber, light weight compared to a similar toy he has, and just the right size to carry around in his mouth. He seems to enjoy the sensation the little rubber nubs have on his gums when he chews it. We have also used this toy to play tug of war and fetch for the same reasons listed but also because the neon green color is easy to see especially if the dog gets distracted and leaves it in the yard. When playing fetch the weight of the toy does not lead to rotator cuff surgery with repetitive throwing on the part of the dog's human! When it gets too dirty and slimy for my tolerance, it is easily washed in the laundry room sink with dish detergent and a sponge always returning to its Spic n' Span original appearance. If and when he chews this one up, I will not hesitate to replace it.Top 3 Likes:-Sturdy, holds up to chewing, used as a crate toy as it poses no threat from dislodged pieces-Bright color aids in finding it outside-Comparatively lightweight, easy to throw, and easy to cleanTop 3 Disikes:-Potentially an aggressive chewer could dismantleOnly 1 dislike!