This Ice Soft-Edge, Hard-Edge, and Reverse-Graduated ND Filter Kit contains three filters that can be used individually or in various combinations to improve the results of your photography by preventing overexposure. The included filters consist of a soft-edge neutral density filter, a hard-edge neutral density filter, and a reverse-graduated neutral density filter. Constructed from optical glass for clarity as well as color fidelity, each filter is compatible with filter holders that can accommodate filters that are 100mm wide and 2mm thick. For each filter, a plastic case is included for storage and transport.