Elevate your photography with the Haida Durable Aluminum Alloy Filter Holder—via the included aluminum alloy adapter ring. Crafted from premium aluminum alloy, it balances sturdiness and lightweight design, perfect for frequent outdoor use. The holder accommodates up to three 100mm wide (2mm thick) filters (ND, GND, etc.), with a push-release locking lever for tool-free attachment and 360° rotation to precisely position graduated filters. A non-slip coating ensures a secure grip even with wet hands or gloves, while built-in front gaskets block stray light, eliminating flare and haze for crisp, high-contrast images. It comes with an integrated drop-in circular polarizer (CPL) filter, featuring an external dial for independent rotation—fully compatible with auto exposure and focus functions. The CPL's optical glass boasts 10-layer anti-reflection coatings and a nano coating for easy water/oil cleaning, reducing glare, clearing distant haze, and boosting color saturation. Ideal for landscape, travel, and professional shooting, this all-in-one holder delivers versatile creativity and reliable performance.