My 18 pounds, 1 year old beagle is a little shark. She destroyed every toy that I got for her (from tuffies to any rough toy in stores). She had to work on Hurley for 20 minutes before she could make the first dent. Also,with all her previous toys after a first dent, she could tear the whole toy apart from the dent. With Hurley, she is able to rip small pieces off of it now but it takes hard work from her. Although it was disappointing that she could make dents on it and rip small pieces, the fact that the toy is still safe to play with (she cant tear large pieces!!) is great. Also, she is very picky about rubber toys, she usually doesnt like them but she loved Hurley's material. I'd recommend this toy to all strong chewers.