Specifications:Pure copper material for better effect.High-grade plating, beautiful, bright, not easy to be scratched.The speaker shock base pad is used between spike and ground, to minimize the harmful vibration.Designed with a height fine tuning balance nut.Suitable for speaker, amplifier, DVD player, turntable recorder, chassis, instrument, etc.Item Name: Speaker SpikePlating: Gold PlatingMaterial: CopperFeatures: Durable, Mini Size, AccessoriesSpike Size: 36mm x 11mm/1.42" x 0.43" (Approx.)Pad Diameter: 15mm/0.59" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:4 x Spikes4 x Pads