SN-50 Screws & Fasteners Silicone Sheet for Vibration Damping, 15 to 50 Optimum Load (kg/1 Sheet), 22 to 15 Resonance Point (Hz), 20 to 18 Resonance Magnification (dB), 30 Hz Recommended Frequency, 0.7 to 2.0 Deflection (mm), Yellow, SN Sheet Series