●Direct fit to the original Floyd Rose Rocking Tremolo Bridge: Original Series 6 & 7 Strings, and Special Series 6 Strings, 1000 Series 6 Strings. Not for Special Series 7 Strings, 1000 Series 7 Strings ●Height: 37mm, Width: 50mm, Thickness: 8mm, Mounting Screw Hole Spacing: 17mm x 2=34mm ●Made of solid brass, bring more sustain and a good choice to upgrade your guitar ●CNC Precision Machined A small amount of oil is adhered to the surface to protect the blocks ●Package Includes: 1 piece Sustain Block and Mounting Accessories