The Flambeau Zerust 4007 Tuff Tainer series features patented and licensed polymer-based Zerust. The Zerust emits a harmless, odorless vapor that fills the inside of the storage box and forms a protective layer around metal objects. Zerust is molded directly into the plastic and requires no maintenance. Thanks to Zerust, tools and parts are protected from rust and corrosion for up to five years. "No spill" latches provide a tight lid seal. Container has 6 separate compartments that are configurable using the included box dividers. 10-5/8"L x 6-5/8"W x 1-9/16"H.