These feet pads can absorb vibration and achieve of listening pleasure, improve sound clarity, stereo imaging and bass response design. Suitable for speaker, amplifier, instrument, turntable, CD / DVD player, recorder, DAC and other equipment. Features -Material: Plastic, Sponge. - With high hardness and density, has low harmonic vibration point and high damping. - Absorb vibration and achieve of listening pleasure, improve sound clarity, stereo imaging and bass response design. - Easy to install, no need to make holes and no need to use double-sided tape to avoid damaging your equipment. - Especially it's convenient for you to adjust load bearing by moving or adding springs which make sound . - Using isolation stand feet is to suspend acoustic feedback from your speaker or sub-woofer isolation for vibration. Package list: 12 x Amplifier Feet Pads