These decoupling spikes and their spikes pads enable your loudspeakers to achieve a more accurate sound reproduction by reducing vibrations. Perfectly suited to bookshelf speakers, these spikes are made of pure, gold-plated copper for corrosion and oxidation resistance. The spikes are 25mm high, and are mounted on the speaker using an M6 screw, with a ring for adjustment. The aluminum spikes pads are 25mm in diameter. They offer greater stability and help to reduce speaker-generated vibrations.