Our 16 gauge twisted wire is the same wire the Professional Dealers use. It's Direct burial approved to open up an area in your yard for your dog or cat. Use our twisted wire to either open up, or become more creative with your in-ground containment. Whenever you have a spot you want to jump in your yard you can use our buriel approved twisted wire to open that area up, and then continue the fence later on down the line. Our Burial approved 14 gauge twisted wire is perfect for ANY in-ground containment fence. Each spool of wire contains 50 feet of burial approved twisted 16 gauge wire.