Fully encased filters with custom CNC aluminum frame. Industry standard size 4 x 5.65 - fits in any matte box. High-quality edge protection against clamps and drops from the matte box. Laser-sharp filter markings on the front and top of each filter. 50% lighter than standard 4 x 5 filters, perfect for gimbal applications. The aluminum frame provides unparalleled glass protection. Protect your glass from matte box clamps, drops, fingerprints, and more. You no longer have to worry about where to place the device during filter changes; you can set it on any flat surface without damaging the glass. 100% visible filter engravings. Engravings for identifying filter strength are located on the top and front of the frame. With these engravings, you can quickly identify which filter you need, grab it, and start shooting. Fingerprint-free handling. Thanks to the aluminum frame, you can easily insert and remove the filters without leaving fingerprints on the glass. Enhanced color accuracy. The PolarPro x Motion Clubhouse 4 x 5 filters are designed to ensure flawless color accuracy. Capture the world in your camera just as you see it in real-time. ND filters - extend exposure time. A neutral density filter (ND filter) or gray filter blocks a portion of incoming light. With a gray filter, you significantly extend the exposure time, achieving effects like blurred water or preventing overexposure in bright sunlight with an open aperture.