MSI's product line includes an extensive offering of Granite , Quartz , Porcelain , Luxury Vinyl flooring , Slate , Marble , Travertine , Sandstone , Limestone , Quartzite , onyx , stacked stone and pavers imported from over 36 countries on six continents. Summary: The Sales Director is responsible to grow and develop the sales and margins of MSI’s Hardscape product lines with landscape dealer and distributor network; located within an assigned geographic territory.