Description Product Description Yamaha Custom Z trombones reflect Yamaha's commitment to creating an instrument that gives an artist the most colorful tonal palette to choose from. Developed with two of the world's finest trombone players The YSL-897Z was developed with Andy Martin and Alastair Kay. Interchangeable Leadpipes The YSL-897Z comes with 2 interchangeable leadpipes. the Z1 for Andy Martin and the Z2 for Alastair Kay Balancer The new balancer found on the YSL-897Z perfectly proportions the instrument's weight. Inner slide The chrome-plated nickel-silver drawn inner slide is very durable and has a quick, sensitive response. In addition, it is a one-piece drawn slide. Outer slide The one-piece, drawn, brass outer slide maintains an accurate diameter throughout its length, and this type of construction ensures airtightness, smooth action, and exceptional durability. The outer slide is fit with extremely close tolerances making the trombone respond quickly and effortlessly. One-piece bell A one-piece bell has a