MB Quart Formula 1 inch 150 watt aluminum dome tweeter kit.
 
Tweeters: Large aluminum dome tweeters deliver great sound and clear highs with increased reliability
External Component Crossover: External Passive Cauer topology Butterworth filter crossover for a smooth transition of frequencies from midrange/midbass to the tweeter element designed into a compact crossover housing that can be easily hidden in the installation.
Tweeter Hardware: Mounting hardware included.