Tom Crown Gemini Straight Mute - Aluminum with Brass BottomTom Crown Gemini Straight Mute Aluminum with Brass BottomDesigned and tested in the secret sordino cellars of Tom Crown Mute Co., this Gemini model combines an aluminum upper section with a brass bottom for a warmer, more nuanced tone. Endorsed by top trumpet sections around the globeincluding the Chicago Symphony Orchestra and the Paris Opera Orchestrathe Gemini offers the unmistakable Tom Crown core sound with a touch of added richness. Key Features