This 37mm UV Filter & Lens Cover Set, don't compatible with Sjcam sj4000 Sport Camera

Specification
Color: Black
Lens Diameter: 37mm
Weight: 15g

Package Contents:
1x UV Lens Filter
1x Filter Adapter
1x Protecting Cap

• 3 in 1 Gopro filter: 37mm UV lens Filter + Filter Adapter + Protecting Cap. Protect the lens, improve the quality of the picture, colours become brighter and clearer when using this filter, and also limits the reflection from non-metal surface such as water and glass windows
• UV filter can attenuate the blue tone caused by ultraviolet rays, suitable for the sea, mountains, snow and open environment shooting
• The UV filter is usually colorless transparent, and needn't worrying about eroded by dust
• The main function for UV lens is to absorb ultraviolet light of which the wavelength is under 400 nm
• UV lens can avoid the coating surface of camera lens directly contact with the external environment

3 in 1 Gopro filter: 37mm UV lens Filter + Filter Adapter + Protecting Cap. Protect the lens, improve the quality of the picture, colours become brighter and clearer when using this filter, and also limits the reflection from non-metal surface such as water and glass windowsPretty Handy