Never cause damage again with nails, strapping or tape. Use the Side Pack instead. It has everything you need to seal both sides of your ZipWall® barrier. It comes with 6 special 3 foot Foam Rail™ crossbars, 6 Side Clamp™ wall mounts, and a custom bag to carry everything. To seal the sides of the barrier, attach the Foam Rails to the Side Clamps, and then latch them to the poles next to the wall. The Foam Rails will push the plastic against the wall, creating a tight seal. Overlapping them, enables you to completely seal any wall up to 9 feet high.