What you're looking at is the M10-II 100mm Enthusiast Filter Kit, a comprehensive set of photography tools designed to enhance your image capturing experience. The kit includes the M10-II 100mm Filter Holder, a second-generation innovation from Haida, renowned for its non-slip design and ease of use in all weather conditions. The holder has been revamped with a new locking design for swift attachment to the adapter ring, and filter guides that snap into place, eliminating the need for screws when adding or removing a guide. The holder also features a locking knob to secure it in place once rotated.