These tug ropes are made from 8 strands of 550 paracord, braided with a 4 square braid, knotted on each end and heat sealed to help them from untying. The ropes are about 2' long and a little bigger than a quarter in diameter. They are sturdy, durable and flexible. They are made to be an interactive toy not a chew toy. The knot may come undone and the toy unravel if a dog chews on it like a chew toy. You and your dog will have a great time playing tug of war with these ropes. Surface washing is recommended.
Note: These are not a chew toy (like a rawhide) but a interactive toy (like a ball or a frisbee). Dogs with sharp, pointy teeth may chew thru the cording and unravel the toy. As with all toys, check for any damage before playing and remove from pet's reach if any is found to avoid injury to your pet.