The American Pro Jazzmaster/Jaguar bridge features brass single-groove Mustang saddles that are nickel plated and will keep the strings where they belong, even with a heavy handed playing style. Here are specs: Nickel/chrome bridge assembly for Jazzmaster and Jaguar, Brass single-groove Mustang saddles, 9.5" radius, 2-1/16" string spacing, Saddles are fixed and not height adjustable. • MFSKU 7709942049 • UPC 885978703715