Inner slide The chrome-plated yellow brass drawn inner slide is very durable and has a quick, sensitive response.   Outer slide The one-piece drawn yellow brass outer slide maintains an accurate diameter throughout its length and this type of construction ensures, airtightness, smooth action, and exceptional durability and adds resonance to the sound.   Inner slide stockings Specially designed one-piece inner slide stockings guarantees airtight slide construction, offer smoother slide action and better alignment, even in the extended 6th and 7th positions.   Tubular braces Long-lasting nickel-silver tubular braces contribute to the stability of the slide and enhance smooth slide action.   Balancer The balancer found on the YSL-354 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.   Slide lock The unique slide lock design on all Yamaha trombones keeps the slide locked in place and keeps it from accidentally falling.   Weight destribution Beginners are more comfortable playing the YSL-354 because its superb weight distribution makes it easier to hold.   Bracing The large, easy-to-hold nickel silver bracing guards against possible slide damage if the instrument is dropped and also lessens fatigue while playing.   Mouthpipe Yamaha trombones have mouthpipes featuring special acoustic designs allowing for precise intonation and greater blowing control.   Available feature The YSL-354 trombone is available in a silver-plated finish.