[High-quality] - These speaker spikes are made of solid aluminum alloy + copper and treated by anticathode oxidation, so it is not easy to fade and oxidate. Its surface is smooth without any burr, delicate appearance, and comfortable hand feeling. [Easy to Install] - To avoid damaging your equipment, you don't need to make holes or use double-sided adhesive. [Wide Application] - These speaker spikes are suitable for HiFi speakers, speaker frames, amplifiers, CD DVD players, turntable recorders, Chassis, instruments, etc. [Function] - These speaker shock absorbing pads are used between spike and ground, to minimize the harmful vibration. [Package Includes] - 4PCS Speaker Spikes + 4PCS Speaker Pads. Load Bearing(4PCS): 110 lb/50kg. These HiFi Speaker Spikes are made of high-quality aluminum and have a glossy black finish that looks great on any speaker. They are designed to improve the sound quality of your speakers by providing better stability and reducing vibration. The spikes come in a set of 4, and each spike has a height of 1.4 inches, which is the perfect size for most speakers. They are easy to install, and simply screw into the bottom of your speakers. The spikes also help to keep your speakers from sliding around on your furniture or floor, which can damage them over time. If you are looking for a simple and effective way to improve the sound quality of your speakers, then these HiFi Speaker Spikes are a great option. The cohesive and powerful low frequencies are cleaner, the loose and natural midrange is more musical, and the silky and flowing highs are more melodious. Different materials have completely different effects on the sound of the shock absorbing spikes, and the combination of aluminum-magnesium alloy and copper spikes can keep the sound very balanced in terms of texture and volume. Design principle: Disperse the downforce through a single contact, and dissipate or absorb the vibration or resonance through the spike tip, so that the sound is more clear, quiet background sound, so as to improve the sense of detail presentation and layering, so that the sound has a sense of space and freshness, can reduce the vibration to less than 5%, and the improvement space is quite amazing.