With an electric dog fence, you can let your dog outside with the peace of mind that they won’t run away or get lost. Dogtra’s brand of E-Fences come with 500 feet of wire, which is used to create your dog’s new perimeter. If your property’s perimeter is greater than 500 feet, then additional lengths of electric fence wire can be bought separately and combined to cover up to 40 acres. Once the border is set, attach your dog’s collar and you’ll be all set. By setting up an electric dog fence, your companion will have free reign of your yard without the need for constant supervision or a picket fence.