20 WIRE SPLICE KITS: Order Includes 20x Twist on Wire Nuts and 20x Waterproof, Silicone Gel Filled Polypropylene Capsules that Lock Down, and Provide Complete Protection from the Elements COMPATIBLE: Works Perfectly on All the Following Electric Dog Fence Brands - Invisible Fence , PetSafe , Perimeter Technologies , Dogtra , SportDOG , Pet Stop , DogWatch , and ALL Others GAUGES: These Electric Fence Wire Splice Kits Will Accommodate 20 Gauge, 18 Gauge, 16 Gauge, 14 Gauge, and 12 Gauge Underground Dog Fence Wire Splicing Needs MADE IN AMERICA: Every eXtreme Dog Fence Brand Fence Wire Splice Kit is Proudly Manufactured Right Here in the U.S.A., and Designed to Outlast Most Applications They're Used For SATISFACTION GUARANTEED: We Stand Behind this Product 100%. If You're Not Completely Satisfied with These Splice Kits, You Can Return Them. NO QUESTIONS ASKED