The lifespan of a dog rope toy depends on the quality, frequency of use, and your dog's chewing habits. Truly safe dog rope toys are made from natural fibers only and thus less durable than alternative options that are made with cotton blends as well as synthetic materials such as nylon and PVC which are known to be toxic. Inspect the toy regularly for signs of wear, such as frayed ropes or loose threads. Replace worn-out toys promptly to avoid any potential hazards.