ammoon Tremolo Saddle Hardtail Bridge Metal Assembly for Fender Stratocaster Strat Electric Guitar A set of tremolo system, ideal replacement tremolo bridge for guitar. Material: Metal Bridge type: 6 string Comes with accessory screws, spring plate, springs, adjustment wrenches and tremolo arm. Tremolo spring length: Approx.5cm / 2in (hooks on two ends are not included)