1. Filter adapter ring is made of metal material, durable to use
2. Waterproof case is made of plastic material, coated glass lens with high transmittance; No matter in water or over the water
3. It mounts directly on the camera housing, and provides internal threads for installation of a 58mm filter in front of the camera
4. It a standard ring adapter with lens cap to install a 58mm filter
5. Compact, light and portable, easy to use
6. Compatible with GoPro HERO8