The Formatt-Hitech 100mm Colby Brown Signature Edition Landscape Filter Kit for 49mm Lens is an all-in-one starter kit containing three essential 100mm-wide neutral density filters along with a 100mm Aluminum Modular Filter Holder and an adapter ring for attaching the holder to lenses with 49mm filter threads. Additionally, a filter wallet is included to protect the filters from damage during travel and an exclusive Colby Brown booklet is also part of the kit, offering inspiration and insight into his landscape photography.