Features: Brand new and high quality M67 to M67 Swing Macro Lens is made of aluminum alloy, with high-grade sandblasting and oxidation coloring. The surfaces is black anodized and has good corrosion resistance. 67mm Lens Filter Adapter has M67 screws that can be installed with SLR waterproof case and lens, so that the lens can be easily switched during diving. M67 Lens Adaptor to M67 is used to connect your underwater housing, which has 67mm thread with accessories such as lenses or filters. While you are underwater and want to quickly switches to your filter, instead of screwing it on, just flip the adapter and enjoy color correction, without the need movements. 67mm Swing Macro Lens Can be used to switches lenses in waterproof case such as SLR cameras for diving shooting. M67 lens adapter M67 camera lens adapter is suitable for wide-angle lenses with M67 thread, lenses with a diameter larger than 90mm cannot be used, and there will be interference Specifications: Material: Aluminum alloy Color: Black/Red Installation size: M67 to M67 Inner Dia:Approx.62mm/2.44inches Outer Dia:Approx.91mm/3.58inches Package Includes: 1x M67 Lens Flip Adapter note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.