Features: The all-aluminium shock absorbing feet with high-density aluminium, which can effectively reduce the vibration of the equipment, reduce the noise interferences and improve the sound quality performances. The feet equipped with a 39mm large-size base to provide greater load-bearing capacity while maintaining stability. The bottom of the footpad is equipped with a high-strength brass nail tip, with excellent abrasion resistance and corrosion resistance, to ensure that long time use will not be deformed or damaged, the expected service life of more than 5 years. The feet to be ready to install without additional tools, which greatly improves the convenience of operation. The all-aluminium vibration isolation feet suitable for amplifiers, decoders and speakers, with a wide ranging of compatibility to meet the needs of different users. Specifications: Material: Aluminum+ Brass spikes Size: Diameter: about 39mm/1.54in Height:about 33.5mm/1.32in Installation hole size: about 4mm Color: Black/Silver Quantity: 2/3/4pcs Package Includes: 2/3/4pcs Feet note: There might be a bit color distortions due to different computer resolution There might be size errors due to different computer resolution