One Piece Diecast Aluminum Frame. Variable Brake System (VBS). Super Stopper. Assist Stopper. Non-Disengaging Levelwind System (400 & 401 only). Two Post Quick Take Down. Rubber Handle Grip. Clicker (400 & 401 only). Aluminum Sideplates. Aluminum Spool. Metal Series. Approved for use in Saltwater. Rated for use with Mono, Fluorocarbon and PowerPro lines.