Amazon Customer 5 I’ve been looking for a solid bone for my dog’s dental care. He is a 45kg Golden Retriever, and is able to destroy toys/treats within seconds. I bought the 20cm bone for him, and he absolutely loves it! We’ve had it for over a week now, and the bone is still mostly intact.It has helped to remove a lot of plaque build up from his back teeth, and I am very pleased with the result. I would recommend this product to anyone who has big dogs. For smaller and/or older dogs, I would suggest you supervise them while they chew on the bone in case it is too hard for their teeth.45kgのゴールデンレトリーバーのママです.