The Klangbogen instantly increases output and depth of tone of the saxophone while stabilizing the extreme ranges of the horn so it speaks with clarity. This beautifully crafted resonance bow is the latest reed and overtone stabilizer designed specifically to fit saxophones that do not have the traditional lyre attachments on the horn, such as Yamaha (however, they CAN also be used on all saxophones using the current neck screw). The One Piece Klangbogen user enjoys all of the sound benefits of the original plus the convenience of being able to use it on any saxophone and also the bass clarinets, like Selmer, with a neck adjustment screw. Metallurgical finishes: Distinct metallurgical finishes give various sound response and feel. - Brushed Aerospace Matte: The most bell-like ring - High Polished Brass: Creates focus and “guts” - Heavy Silver Plate: Promotes added clarity and highs - Beautiful “Black Diamond” wear finish fostering a smooth “buttery” glide to the cut - High Polished 24Kt. Gold Plate: Promotes a velvety richness to the sound. NEW Chromium - Durability, beauty and response.