PetSafe Stubborn Dog Receiver Collar, In-Ground Fence Collar, Waterproof, with Tone, Vibration and Static Correction for dogs 8lb and Up - Not Compatible with YardMax and UltraSmart
The PetSafe Stubborn Dog In-Ground Fence Receiver Collar fits dogs who weigh 8 pounds or more and adjusts to fit neck sizes between 6-28 inches. The waterproof, battery-operated collar has a tone plus vibration mode and 4 levels of adjustable static correction at a higher intensity correction level for hard-to-train pets.

PetSafe Boundary Wire - 500 foot Spool of Solid Core 20-Gauge Copper Wire - In-Ground Pet Fence Wire - Colors May Vary - From the Parent Company of INVISIBLE FENCE Brand
Expand your In-Ground Fence boundary. Each spool of Extra In-Ground Boundary Wire comes with 500 ft. / 150 meters of 20 gauge, solid core, copper wire rated for direct burial. This covers up to 1/3 acre per spool. The length of wire needed will vary due to amount of twisted wire and the layout you select. A waterproof connection is needed for proper performance when adding additional boundary wire. We recommend using our Splice Kits (RFA-366) which include wire connectors and gel-filled capsules.