Feature: 1. Use Purpose: Filter set can be used for underwater photography in a waterproof camera housing, with screws on both sides. 2. Simple Disassembly and Assembly: Convenient, press directly on the lens of the waterproof case, high quality soft glue, stable. 3. Red Filter: Suitable for 5‑25m/16.4‑82.0ft tropical or blue waters. It can effectively the red light source absorbed by the water and correct the color deviation. 4. Filter: Suitable for 5‑25m/16.4‑82.0ft tropical or green waters, can effectively reduce the influence of green tones or green tones due to green algae, and correct color deviation. 5. 16x Macro Lens: Used to take photos of flowers, small collectibles, and stamps, insects, small or small objects that require close up details. How to Use: 1. Adapter ring is directly installed at the lens of the waterproof case and pressed on both sides. 2.Filter is screwed on the adapter ring. 3. Filter cover is on the spiral filter. Specification: Item Type: 16x Macro Lens Filter Kit Color: As Pictures Shown Weight: Approx.122g/4.3oz Material: Optical Glass + Aluminum Alloy Filter Diameter: Approx. 58mm/2.3in Applicable : for Hero 9 Package List: 1 x Red Filter (Installed) 1 x Filter (Installed) 1 x 16x Macro Filter(Installed) 1 x Storage Box 1 x Cleaning Cloth 1 x Hand Strap 1 x Adapter Ring