Tightly seal a barrier along a wall in seconds! FoamRail™ tapeless seals are a quick and effective way to seal a barrier tightly after it is set up. The SideBridge™ is used in conjunction with a FoamRail Span™ to seal a barrier along the wall. The SideBridge™ snaps onto a FoamRail Span™ and holds it against a ZipWall® pole to form a tight seal. One Span™ can seal up to 8 feet along the wall. The SideBridge™ also works with the FoamRail Span™ Mini to seal up to 4 feet along the wall. Long SideBridge™ Wall Mounts can be used to seal tightly around obstacles like baseboard radiators, and crown molding. Each package contains two standard and two long SideBridge™ wall mounts. Use with plastic sheeting or ZipFast™ Reusable Barrier Panels. Works with all ZipWall® poles.