What is Twisted Wire?Twisting two wires together creates a neutral wire that does not activate the correction on your dog's collar. The twisted wire carries the signal from your transmitter box out to the main loop but stays neutral and allows your dog to cross over without correction (without the twisted wire your dog would not be able to cross the line that runs from your transmitter out to the boundary loop). You can also use twisted wire to connect smaller loops to the main loop, which can be used to keep your dog out of flower gardens, swimming pools, and just about any other no-go zone in your yard.Extreme Dog Fence Products Twisted Wire - Pre-Twisted - We know your time is important to you, and installing a fence yourself takes a bit of effort, so we pre-twisted this wire for you! Save time and effort by using transmitter wire that's already twisted.- 16 Gauge - Have peace of mind by using this high-grade wire coated in thick, flexible polyethylene; the same heavy-duty stuff that the professional in-ground electric dog fence installers use!- Universally Compatible - Works on all buried wire electronic dog fence brands including Extreme Dog Fence, PetSafe, Perimeter Technologies, SportDOG, Invisible Fence, Dogtra, DogTek, and many more!Shop Extreme Dog Fence For All Your Pet Needs!Our Extensive Amazon store has plenty of pet products for your dog, cat, or other small pets. Come check us out!