A 25-foot long magnetic strip that is 4” wide which is scored vertically in 1” wide strips. This allows MagSeal to adjust width to cover gaps up to 3 ½” wide. The adjustable width allows for high versatility in sealing gaps of various length and width. Strips can be cut to length with a common scissors. Sealing an entire row of server cabinets can be done in a matter of minutes.