Description: Features: brand new and high quality Made of high quality aluminum alloy, high hardness and density, low harmonic vibration point and high damping. Shockproof and antiskid rubber: higher quanlity of listening pleasure, improve sound clarity, stereo imaging and response. Shockproof spikes and pads can make good use of the characters of aluminum alloy, which help the elimination of vibration. Easier to install, no need to make holes and no need to use double-sided adhesive to avoid damaging your equipment. Turntable feet spikes: offering an effective solution for optimizing the true sound and reduce vibration of stereo equipment. Using isolation spikes is to suspend acoustic feedback from your speakers. Spikes can be installed to separate your players, amplifier or other audio components from vibration. Specification: Material: Aluminum Alloy Optional Color: Black, Silver Height: app. 33mm(1.30in) Top Diameter: app. 38mm(1.50in) Bottom Diameter: app. 45mm(1.77in) Quantity: 1 set Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 4 x Shockproof Feet Spikes 4 x Shockproof Feet Pads (other accessories demo in the picture is not included.)