The Bach HS4762NL component trombone handslide is designed to fit any of the Bach Artisan Stradivarius curated modular trombones, or it can be combined with your choice of other modular components to create the ideal custom trombone for your playing needs. The HS4762NL handslide features a 0.547 to 0.562-inch dual bore, with a lightweight yellow brass outer slide and chrome plated nickel silver inner slide. This handslide also features a nickel silver crook and three threaded leadpipes–47, 42, and 42O (open) to allow players more playing options to fit their individual playing needs.