Description: Material Aluminum Alloy: with high hardness and density, has low harmonic vibration point and high damping; Anti-skid Rubber: absorbs vibration and achieves higher sound quality, improves sound clarity, stereo imaging, and bass response Design CNC-machined and anti-skid rubber isolation feet are easier to install, no need to punch holes and no need to use double-sided glue to avoid damaging your equipment. It is particularly convenient for you to adjust the load by moving or adding springs which can make the sound feel different Function Using isolation feet is to decouple the acoustic feedback from your speakers or subwoofer isolation for vibration. The tones will be well focused, lighter, and with less noise. It can also avoid much of the vibration that can disturb downstairs. Advantages it has high damping properties which can keep low quantity feeling and raise high-frequency line feeling and easy feeling. Applicable Objects speakers, amplifiers, instruments, turntables, CD/DVD players, recorders, DACs, and other equipment Color: Silver/Black Weight load capacity of each is 7.5kg Package includes: 1pc Spikes Spring Damping Pad