Compatible with for GoPro 9 10 11 12:This variable ND filter is compatible with for GoPro 9 10 11 12. It helps you easily handle various outdoor light conditions, from overcast to bright sunny days, and control the amount of light that enters your camera lens to avoid overexposure. Variable & Precise Light Control:Simply rotate to the exact marked stop to achieve desired light reduction level for accurate exposure control and capture moving subjects with expressive motion blur effects. Quick & Secure Attachment:This filter quickly threads onto the camera and stays firmly in place during any sport activity, whether it is surfing, hiking, mountain climbing, or biking. Multicoated HD Optical Glass:Multiple oleophobic and scratch resistant coatings on both sides of the HD optical glass ensure excellent optical performance and effortless daily cleaning. Slim Aluminum Alloy Frame:Precision CNC machined aluminum alloy frame is lightweight yet robust, ideal for outdoor photography and videography on the move. Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Specification: ND64-ND512/ND4-ND32 Color: As Shown Material: Optical Glass + Aluminum Alloy Package Contents: 1 * Variable ND Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.