Add additional 20-gauge wire and flags to increase your fence area. This kit will complement the wire and flags that come with your in-ground pet fencing system. Use the flags to train your pet, then remove them after training. Save the flags in case you add a new pet to the system or your pet needs more training sessions in the future. We recommend keeping a flag or two in your yard to let neighbors and passerby know that your pet is safely contained. Also included are two gel capsules and connectors to splice and repair broken boundary wires.