1Aluminum alloy and brass spikes have higher hardness and density, lower harmonic vibration points and higher damping, which can improve sound clarity. 2Antivibration and nonslip rubber can increase the energy of midlow frequency while maintaining the original rich details to achieve higher quality listening enjoyment. 3The use of isolation spikes can suspend the sound feedback of the speakers, which provides an effective solution for optimizing the real sound and reducing the vibration of the stereo equipment. 4The integrated antivibration nails and pads can make full use of the characteristics of brass and aluminum alloy, which is beneficial to eliminate vibration, the tone will be more concentrated, and the noise will be less. 5Easy to install, no need to punch holes and use doublesided tape, so as not to damage the equipment. Suitable for speakers, amplifiers, musical instruments, turntables, CD/DVD players, recorders, DACs and other equipment. Item Type: IsolationFeet Pad Model: SP4533 Material: Aluminum Alloy + Rubber + Brass Product Size: Approx. 45mmx33mm/1.8x1.3in One Set: (Foot Nail + Foot Pad) Scope Of Application: Speakers, Amplifiers, Musical Instruments, Turntables, CD/DVD Players, Recorders, DAC and Other Equipment 4 Set x IsolationFeet SpikeThe product only has spikes and no audio.