Snow Guards are rooftop devices that help prevent snow slides, the dangerous movement of snow and ice, by allowing it to melt completely or drop off in small amounts. Our snow guard products help prevent damage from avalanching snow and ice while adding beauty and function. Kit Includes:25 SnowCatchers, 304 Stainless Steel with foam sealer bases 50 high quality galvanized #14, self-drilling screws that are 1.5 inches long, with an attached neoprene washer. This kit is for attachment to roofs with metal purlins. Wood screws are also available.Detailed instructions for installation which can also can be seen at http://snoblox-snojax.com/index.php?l=page_view&p=install We have several kits available on Amazon with various products, quantities, with/without adhesives and screws. If this kit is not what you need, please see our other auctions or call us at 717.737.4398.This is an exclusive Amazon offering. Pick ups during normal business hours are welcome. We are located south centrally in Lemoyne, PA, near Harrisburg.Placement of snow guards in just isolated areas such as chimneys, doorways, vents and partial roof sections is NOT recommended. Always obtain a spacing layout before installation. Follow suggested layout to assure your satisfaction and to validate warranty. A spacing recommendation and layout tool for snow guard placement is available at http://www.spacingtool.com If you have any questions or concerns, please call us at 717-737.4398.Please note that these products will only be shipped in the continental US. Sorry Canada or Alaska shipping is not available for this auction.