This Fushion-Tec sanding pad has truer running performance for smoother surfaces, less vibration, and longer life. Fusion-Tec pads are fully compatible with all current Festool 150mm abrasives including Jetstream, Multi-Jetstream and Multi-Jetstream 2 hole patterns. This is a hard pad that is resistant to damage caused by high temperatures, with regular density for most general purpose finish sanding applications.