Feature:1. The filter can be used for underwater photography of a waterproof camera case.2. Screw fixation on both sides, don't worry about shedding3. Macro lenses are used to take pictures of flowers, small collectibles, COINS and stamps, insects, small creatures or small objects that require close detail.4. Simply snap the adapter ring in place. It fits to the outline of the housing well.5. Specifically Designed for GP8 58 Black motion camera for macro shooting.Specification:Condition: Brand NewItem Type: Macro Lens FilterMaterial: Optical Glass + Aluminum AlloyColor: As Pictures Shown Product Size: Diameter of Filter: Approx. 58 mm/ 2.3 inApplicable Model: For GP8 58, for GP9 58, for GP10 58, for GP11 58, for GP12 58.Package List:1 x 16X Macro Lens Filter1 x Storage Case1 x Cleaning Cloth1 x Hand Strap1 x Adapter RingNote:1. Please allow 13cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3.The product is installed in the original waterproof case, not on the machine.