Features:15X Macro camera lensfisheye lens, specifically design for Hero 109 Black action cameras.High-definition optical glass lens, high-definition pictures taken without distortion, bringing high-definition transparent quality.Multi-layer coating film, waterproof, oil-proof and scratch-resistant, durable for long service life.Aviation aluminum alloy housing frame, ultra-thin and lightweight, rapid replacement, no damage to the original lens.Macro lens, suitable for macro close distance shooting, such as flower bird insects, etc., clearly present every detail, open micro world.Fish eye lens, large perspective, wider shooting screen, clearer picture quality. Specifications:Material: Optical Glass+Aluminum AlloyMacro Lens: Approx. 7.7x6.7 cm3.03x2.64 inchType: Macro LensFisheye Lens(Optional)Applicable Models: for Hero 10 9 Black Action Cameras Accessories Note:Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Includes:1 Piece Optical Lens