Feature: 1. Compatible Model: Specifically designed for Action 3 4 action camera, this filter set provides more creative space and record vivid scenery. 2. Vibrant Colors: The combination of ND and polarized filters reduces exposure levels and eliminates non metallic reflections, making it a excellent tool for landscape photography. 3. Premium Coating: Utilizing coating technology, these filters offer better clarity, anti scratch design, and an oil and dust repellent layer for water droplets. 4. Convenient Portability: Made with ultra thin metal, these filters have a lightweight construction and come with a storage box for easy transport and storage in your pocket or backpack. 5. Versatile Set: This set includes four different levels of ND and polarized filters. The higher the number, the stronger the effect. Choose freely according to your recording needs. Specification: Item Type: NDPL filters set Material: Aluminum alloy, optical glass Weight: Approx. 108g / 3.8oz Fitment: Fit for Action 3 4 action camera. Package List: 4 x NDPL Filter1 x Storage Case