FT Synthetics products provide ultimate high performance and protection for the installer and your home. FT Synthetics products are fully synthetic, 100% recyclable, offer superior grip protection, excellent UV resistance, are the most pliable and of course are easy to use. They are light weight but durable and provide the best protection available in the market. Silver is your cost effective and reliable 15 Lbs. felt replacement product, which is easy to carry, and has 2.5x more coverage per roll as compared to felt.