The Formatt-Hitech 100 x 150mm Soft-Edge Graduated ND Filter Starter Kit with 58mm Adapter Ring is a complete bundle containing both 0.6 and 0.9 soft-edge graduated neutral density filters, a 100mm aluminum filter holder, and an adapter ring to fit lenses with a filter thread diameter of 58mm. Additionally, a Filter Basics booklet is also included that gives helpful tips and practical advice on how and when to best utilize these filters.