Decouples all hi-fi components, especially speakers and record players, from low-frequency vibrations. Resonances and feedback are eliminated by the padded absorbers. Set of four decouplers with double-sided felt adhesives. Height adjustable with a fine thread. Hand-turned and polished. Four grommets for placing the spikes. Technical data: https://elecena.pl/product/18417626/205044-spikes-absorbers-four-pack-black 2021-05-10 https://elecena.pl/product/18417626/205044-spikes-absorbers-four-pack-black 2021-06-17