Supervizor SB600 brow guard with ratchet headband is a complete heavy-duty face shield that can be helmet-mounted. The brow guard is compatible with a wide range of helmets plus the visor fixing is safe and secure allowing easy replacement as required. You are provided with maximum face protection as the creased visor has no gaps and follows the face contours. The face guard is compatible with a wide range of helmet-mounted earmuffs including Bilsom communication earmuffs. The SB600 visor is designed so that it can be tilted when wearing earmuffs.