Harmonic Stabilizer is made of Delrin® polymer with high mechanical standards, includes 3 gold plated steel balls dissipation system. As option and upon request, metal balls can be replaced with ceramic balls. Harmonic Stabilizer has a variable oscillation frequency that allows sound harmonization to personal preferences. WHAT IT DOES Placed above electronics, loudspeakers, power supply etc. Makes sound faster, more focused, natural and fluid. Placed above loudspeakers allows a sound refraction and further clarity of acoustic scene and sound levels. WHERE TO PLACE IT Harmonic Stabilizer must be positioned on top of electronics, CD players, preamplifiers, amplifiers, speakers, power supplies, etc. The Harmonic Stabilizers can also be used as feet under loudspeakers and electronics. Diameter: 100 MM Height: 60 MM