Stone Tone Rock Blocks allow the artist to excel their tone to a whole new level while achieving a new awareness of tone and playability based on the natural attributes our Products offer. Granite, when quarried in its natural state, also has a crystalline atomic structure which is ideal for sonic transference and has a compression strength of 19,000 psi, and a tension strength of 700 psi—the material these blocks are made of is the fourth densest on earth next to Diamond, Carbon and Quartz that has ideal resonant qualities which will decrease signal loss from your guitar to your amplifier by at least 30%. Utilizing this optimum material allows you to achieve maximum attack, clarity, sustain, note articulation, note separation, harmonics and punch. While the lows get tight and articulate, the harmonics scream effortlessly! Palm mutes, tapping, sweeps, you name it, all sounds so much better. After the installation, your overall tone will be improved equally in all ranges of the fret board with a significant difference in sound and feel like you have a whole new guitar. The extraordinary results of this upgrade are indisputable. Our Blocks are compatible with the Floyd Rose Original Tremolo System and its derivatives, as well as many licensed models and comes with stainless steel sustain block mounting screws. Upgrading your tremolo with a Stone Tone® Rock Block is the answer to those who want "That" tone they've been searching. To hear the true potential of your pick ups, consider installing a Rock Block because the results are Guaranteed !