Bach TB300 Standard Trombone
Key of Bb, .500" medium bore, 8" two-piece yellow brass bell, chrome-plated nickel silver seamless inner slide, brass outer slide, chrome-plated handgrip, tubular nickel silver body braces, removable nickel-plated balance weight, genuine Vincent Bach mouthpiece, double-wall case.

Yamaha YSL-354V Standard Valve Trombone
Tubular Braces. Long-lasting nickel-silver tubular braces contribute to the stability of the slide. Balancer. The balancer found on the YSL-354V perfectly proportions the instrument's weight. Pressure formed tubing. Perfectly rounded tubing results in less turbulence and a smoother air flow, thus allowing for an excellent scale and reduced resistance. Laser-fused pluzuma welded bell. A high-energy laser fuses the brass together for a virtually seamless bell which allows continuous even vibrations. Weight distribution. The YSL-354V is more comfortable to play because its superb weight distibution makes it easier to hold. Bracing. The large, easy-to-hold, nickel-silver bracing guards against possible slide damage if the instrument is dropped. It also lessens fatigue while playing. Mouthpipe. Yamaha trombones have mouthpipes featuring special acoustic designs allowing for precise intonation and greater blowing control.