Patent ID: 8640654

Claim:
An attachment for a fence system to block any opening below ground level along the length of the fence system, the attachment comprising: at least one first support member adapted to be attached substantially horizontally to at least a portion of the fence system; a plurality of second support members adapted to be attached substantially vertically to the at least one first support member such that a lower portion of each of the plurality of second support members abuts a ground level adjacent to the fence system, wherein each of the plurality of second support members is configured to assume a hollow configuration; and a plurality of inserts, each insert of the plurality of inserts being adapted to be received within each second support member of the plurality of second support members and where each insert remains in a first position at ground level, wherein each of the plurality of inserts descend downwardly out of the lower portion of the each of the plurality of second support members as soil is removed under the insert moving to a variable second position below ground level, the extended plurality of inserts capable of blocking any opening below ground level, and each insert of the plurality of inserts comprises: a first insert capable of being telescopically received within the second support member of plurality of second support members; and a second insert capable of being telescopically received within the first insert, wherein the first insert is adapted to descend downward from the lower portion of the second support member and the second insert is adapted to descend out from the first insert to prevent the pet animal from escaping the fenced area.