I am so pleasantly surprised by these!!! I am the skeptical dog parent of dogs that are VERY aggressive chewers who thrown tons of money away on the "non destructable," "tough" toys that claim to last even with aggressive chewers.For reference I have two dogs. A great dane boxer mix, who is 70lb, she is an aggressive chewer but things would last maybe a week. A pitbull mix, who is 59lb, he is a VERY aggressive chewer and has things destroyed within 10min, if we are lucky a "main chunk" of the destroyed toy may last a whole 24hrs.When I saw these I figured it would turn into the same story and was hesitant to click buy. After reading reveiws and the product description VERY carefully (to ensure I purchase the most fitting size/durability recommendation) I decided on the Medium, 30-70lb (Original size), Toughest HD Pro 50 (as the "color" choice). Then left I in my cart for a week to decided if I wanted to purchase it only to be heart broken like always. Finally, I clicked buy, and my pups and I excitedly awaited their arrival.My great dane mix knew the second brought them in there was something it that package for her! I opened them ready to see how indestructible these really where.Note: I recall reviews I read talking about smell. Okay so they so have a very 'tire factory' rubber smell, and if you touch it your hands they will smell like rubber. However the smell is not an issue for my dogs, and it doesn't seem to have a taste (if it does my dogs don't care, I wasn't as brave as the other reviewer who checked theirself).Now for the fun part! We released the toys to what we were sure would be their death, the dogs LOVED them, and like any new good toy, the dogs went to town chewing them and playing with them. They chewed and chewed till they couldn't any more, because their jaws were to tired!!!! The pit chewed on his, determined to kill it for TWO STRAIGHT HOURS! The pictures attached are from this first night.Today marks week THREE that we still have these toys and they are STILL all in one piece!!!! I am blown away by this. Now, the toys do have many more scuffs, holes and scratches but they are in one piece with no chunks missing. This has never happened in the life of a toy in my house!!! These toys are still a favorite and chewed/played with often.As a skeptical indestructible dog toy person, these toys and this company are a WIN! I have already recommended them to a friend and would highly recommend them to anyone. My only advice is throughly read the product description and guide to purchase the correct toy for your chewer. I hope this helps someone else find the forever toy for their pup!***UPDATE***It has been three months now, these toys are still alive and a favorite. I added two pictures to show them at two months in, sorry I meant to update this review then. My dogs have managed to get a few more chunks off one of them since then. But I have to stress how impressed I am with these toys, they are expensive, however, well worth the money because THEY DO LAST. We will be buying more just to have a different style.