Floyd Rose FRPTUFB37 Pro Fat Tungsten Sustain Block 37 mm – Maximize Sustain and Tone

The Floyd Rose FRPTUFB37 Pro Fat Tungsten Sustain Block 37 mm introduces a new level of performance to the Pro series tremolo. Relying on ultra-dense tungsten, it increases resonance, sustain, and note brightness in any compatible instrument. Designed for guitarists seeking more from their tremolo without major modifications, this accessory stands out for its smart material choice and robust build.

What sets this sustain block apart?

With tungsten’s remarkable density—over four times that of titanium and double that of brass—this block achieves a level of mass that’s rare in a replacement part. Clearer tone and longer sustain are immediately noticed, thanks to the direct energy transfer provided by the compact but heavy design.

Functional benefits for tremolo upgrades

• Material: Tungsten (Wolframcarbid) — The extra density and hardness keep string energy focused at the bridge for improved resonance.
• Thickness: 12.75 mm — Double the standard block thickness, increasing mass and tonal depth.
• Height: 37 mm — Ensures a precise fit for German-made Pro tremolo units.

Compatibility and use

• This model is intended exclusively for German-made Floyd Rose Pro systems
• Direct-fit design eliminates the need for additional routing on most Pro guitars
• Manufactured in Korea to meet Floyd Rose specifications