Raw Stone Regulus 10 filter set, supplied as a set of two, with round city and fog filters for the Raw Stone Regulus 10. It contains two black silicone rings, two glossy black discs etched with the Raw Stone logo and two translucent amber discs. The fully opaque city filters are for comfortable riding in urban settings, and the fog filters enhance visibility during misty or low-light conditions. Construction combines automotive-grade silicone, built to perform from –40°C to 200°C so it suits all climates, with thick 3mm acrylic for strength and long-term durability.