Features: 360 degree Adjustable Metal Fisheye Lens with Triple Control Systems delivers panoramic 180°+ coverage, perfect for capturing expansive landscapes, crowded event, and confined spaces through its screw mount. Engineered with precisions machined metal construction, this fisheye adapter features focal length, and FOV adjustments for clear imaging across dashcams, security cameras, and action cams. Ideal for automotive enthusiasts upgrading vehicle recording systems, home security installers optimizing coverage, and adventure photographers seeking wide angles versatility in compact setups. Enhances driving safety by eliminating blind spots in car dashcams, and captures immersive POV footage during outdoor adventures like hiking or motorsports. The adapter installs in seconds via reinforced screw threads, maintaining device portability while transforming standard lenses into professional 360 degree imaging tools through its weather resistant metal housing. Specifications: Component: Metal Box Size: about. 13x5.5x8cm/5.12x2.17x3.15in Pattern: 4 pattern optional Package Includes: 1 Set Rear View Camera note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.