WILKINSON 5+1 HOLE TREMOLO STEEL BLOCK CHROME Color: Chrome Steel full block with vintage steel saddles Faultless Finish; Guaranteed Quality (Made in South Korea) Push in fit trem arm String Spacing: 10.8mm 5 Elongated knife-edge mounting holes for universal installations Package includes:  1 Chrome Strat Bridge 1 Strat Tremolo Arm 6 Mounting Screws 4 Springs 1 Claw 2 Claw Screws 1 Allen Wrench