Upgrade since August 4: As many buyers told me, the old products are not as strong as they want. In order to ensure durability, we contacted the factory to improve the products. Thus, they change with hard materials. While others still sell old products. Extra bacon flavors are more appealing to your dogs. Note: This product is sold by CMKJ. Please choose the right store, say no to the pirate product or store. Only CMKJ provides perfect after-sales service guarantee. Cleaning Teeth: There are plenty of snores on the surface of this toy which will improve the friction between the toy and the dog's teeth, so it will clean the dog's teeth when chewing and the toy is very easy to clean. Pull Handles: There are handles on both sides of this chew toy for humans can catch and bend with the dogs. It will improve the interaction between owners and dogs. Perfect Toy for Large Dogs:CMKJ Chew Toy for Aggressive Chewers is the right choice for dogs that change their teeth or dogs vigorous to divert their energies. The length of this dog chew toy is 33cm, it is enough for large dogs.