This left handed official Fender Standard Series Stratocaster Tremolo has a vintage style with Mexican standard spacing and is used on most six pivot screw Standard, Deluxe, Roadhouse, Lone Star and Blacktop Stratocaster models manufactured from 2006-present. The bridge features 'Fender' stamped bent sheet steel saddles for clarity and response (with 3 mm metric thread saddle height screws) and it requires a 5 mm metric thread tremolo arm. This is the tremolo bridge body only, mounting hardware (pivot screws, tremolo claw, tremolo springs etc.) and tremolo arm are not included.