The Haida M10 Pro Filter Holder Kit includes a drop-in CPL filter with 67mm, 72mm, 77mm, and 82mm rings to fit various lens sizes. Manufactured by HAIDA in China, this filter holder kit comes with a 1-year manufacturer warranty. Specifically designed for lenses with front sizes of 77mm, 82mm, 72mm, and 67mm, this product is ideal for photographers looking to easily attach filters to their lenses for added creativity and versatility in their photography work. Additionally, it is important to note the California Prop 65 Warning associated with this product.