2 Full Rolls @ 500 ft each and one about half full. Used to lay down the dog fence years ago and no longer need these. 2 are brand new, one used. Expand your containment system with this 500 ft/150 meters of 20 gauge, solid core, burial-grade wire. Wire insulation color may vary. We recommend using gel-filled splice capsules and wire nuts (RFA-366) when splicing your additional Boundary Wire. Length of wire needed will vary due to the amount of twisted wire and layout used, see table above for guide. Compatible with PetSafe, Guardian, or Innotek in-ground fence kits. Expands your containment system beyond the initial 500 ft. of wire that accompanies the in-ground fencing kit. Each spool is 500 ft 20 gauge, solid core, burial-grade wire. Below is a guide to help determine the amount of wire you will need based on the area in which you want to contain your pet. Length of wire needed will vary due to the amount of twisted wire and layout used. For proper system performance, the splice connection must be waterproof.