size: 39 x 24mm Material: Aluminum alloy + steel balls colour: Black Package Contents: 1 x Speaker Spikes Foot Pads Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Reduce vibration and resonance, HiFi Speaker Isolation Feet Shock Absorbing Pads foot design can absorb up to 94% of vibration and resonance, providing an effective solution for optimizing the true sound of stereo equipment. The CNC machined design of these isolation stand feet makes it easier to install without drilling holes or using double-sided tape to avoid damaging your device. Isolation feet are designed for use with speakers, amplifiers, musical instruments, turntables, CD/DVD players, recorders, DACs and other equipment. Multi-device compatibility, works with speakers, amplifiers, musical instruments, turntables, CD/DVD players, recorders, DACs and other devices for a better listening experience. Made of high-quality material, it is , non-fading and not easy to oxidize, ensuring long-term use without loss of quality. Non-slip rubber on the isolation feet helps absorb vibrations for higher quality listening pleasure, improving sound clarity, stereo imaging and bass response.