For the installation of speakers up to 6.5 inches. Can be used for the addition of new speakers or the relocation of existing speakers. Includes: 2 Speaker Pods with Rubber Gaskets. Features: Constructed of High Quality ABS Plastic, Accepts 6.5" Speakers or Smaller, External 1 inch Mounting Flange, Smooth non textured Finish. Applications: Cars & Trucks, Boats, UTVs and RVs. Installation Options: Door Panels, Kick Panels, Under Dash, Rear Deck and Overhead. Special Notes: Speakers are not included in purchase, Pods are sold with NO speaker hole cut in top, Customer must cut own hole for speaker installation. For a airtight seal on these you can use clacking around the flange. No installation hardware is included- the speaker mounting hardware is typically provided with a new set of speakers. The hardware for mounting the flat flange of the pod will very depending on mounting location and type of Material that it is being mounted too.