Digital HT filters are a state-of-the-art technological breakthrough in multi-coated photo and video filters. Made for the discerning professional and imaging enthusiast, These filters offer the strength of a Titanium coating combined with the purest optical quality glass and Tiffen's Academy-Award-winning ColorCore technology. They present unmatched scratch-resistant durability and worry-free cleaning. This kit features a Digital HT Digital Ultra Clear and Digital Ht Circular polarizer. This kit also includes a padded nylon filter pouch with belt loop to help protect your investment. These are designed to fit lenses with a 52mm filter size.