The Ultimaxx 50m/164ft Underwater Housing has a large flat lens that delivers maximum image sharpness above and below water. The thumbscrew double-wing design allows for strong grip and tight hold. There is a quick release buckle mount for easy attachment to a chest harness, helmet mount, or other adhesive mounts. Secures your GoPro and makes it so your camera can be quickly attached or removed. The underwater housing has 12 reusable anti-fog inserts for cold or humid conditions to avoid excess moisture building up on your lens and inside the GoPro housing.