(Spikes can be installed to separate your players, amplifier or other audio components from vibration.The tones will be more focused with less noise. Materials: 1) Aluminum alloy and brass spike: with high hardness and density has low harmonic vibration point and high damping; 2) Shockproof and antiskid rubber: achieve higher quanlity of listening pleasure, improve sound clarity, stereo imaging and bass response.
eBay