About this item HIGH-END QUALITY - The new subwoofer feet avoid the transmission of unpleasant vibrations to furniture and other areas, providing clearer, undamaged, and more precise sound in low, mid, and high frequencies. STABLE & ROBUST - The bass absorber made of aluminum alloy guarantees the best stability and high-quality workmanship for long life. Maximum load capacity of 300 kg per 4 pcs fits most speakers and devices. USEFUL HEIGHT - The isolation stands with 20mm height and 23mm diameter are suitable for turntables, CD or DVD players, Hi-Fi speakers, speaker frames, instruments, etc. PROTECT YOUR FLOOR - The 23mm base mat protects the parquet or carpet. For acoustic coupling, the spikes are pointed at the floor and placed on the small base pad. Additionally, the spikes can be used to compensate for unevenness on the floor. EASY ASSEMBLY - Strong double-sided adhesive pads ensure the speaker amplifier does not move. Simply peel off the film and apply it to the chosen location,