Floyd Rose FROSTBL37 Stone Tone L Sustain Block 37 mm – High-Performance Tremolo Upgrade

Delivering a breakthrough in guitar hardware, the FROSTBL37 Stone Tone L Sustain Block 37 mm is a precision-cut granite sustain block created for Floyd Rose tremolo systems. By replacing traditional metal blocks with advanced Volcano Black Absolute Granite—one of the densest natural materials available—this model provides enhanced note clarity, longer sustain, and improved tonal focus by minimizing signal loss through the bridge. The FROSTBL37 Stone Tone L Sustain Block is compatible with Floyd Rose Original, Special, and many 1000 Series 6-string and 7-string bridges. This makes it a versatile upgrade for modern tremolo-equipped guitars.

Why Choose Granite for Your Sustain Block?

Unlike standard brass or steel, granite features a unique crystalline atomic structure, making it ideal for sonic transference. With its density and resonance properties, the block increases amplitude and sustain, while mass and composition contribute to a fuller, more balanced sound throughout the frequency range. Many guitarists report a dramatic decrease in signal loss and immediate tonal improvement after installation.

Compatible, High-Density Tremolo Component

The 37 mm Stone Tone L Sustain Block is specifically sized for compatibility with leading Floyd Rose tremolo models and derivatives. Its custom L-shape takes advantage of space beneath the tremolo arm, increasing mass and offering additional support for high-energy playing. Robust granite construction ensures stability during intense tremolo use and fits most common routed tremolo cavities.

• Material: Volcano Black Absolute Granite — Fourth densest material on earth, just after Diamond, Carbon, and Quartz
• Installation is straightforward with the Block Size: 37 mm to suit many Floyd Rose Original and compatible bridges.
• Compression Strength: 131,000 kPa (19,000 psi) — Ensures exceptional durability and energy transfer