Kicker 40KMMTES Marine Unloaded 4” Tower Enclosures - BLACK*Please note, this is a special order item which means we order it in from our suppliers per every order. This could take up to 10 working days* Mounting powerful 4 inch KICKER speakers for external listening in marine and powersport applications just got easier with KICKER's durable and weather proof KM Series Tower Speaker Empty Enclosures. Includes acoustic poly fill for clearest sound and all mounting hardware including rubber adapter inserts for