The 150mm 15-hole Sanding Discs - Box of 50 - are designed for both dry and wet sanding applications. Made with flexible latex paper and a nylon grip backing system, these discs have excellent clog resistance and a longer lifespan. They feature high performance aluminium oxide abrasive grains and are ideal for sanders equipped with a dust extraction system, promoting a cleaner work environment. The Rhynogrip Redline is recommended for optimal results.