The S-5-K Grip Snow (“K” stands for Klip-Rib®) is designed for use with S-5! ColorGard®. Use on roofs, such as AEP Span Klip-Rib®, and Klip-Rib® similar profiles: Lysaght® Klip-Lok 406, McElroy Mirage and Metal Sales Clip-Loc. Two different inserts (sold separately) compensate for exact rib dimensions.