ITEM NAME:4Pcs 6 x 36MM Copper speaker spike isolation stand + base pad feet mat Z-PN FT Features: 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, Â to minimize the harmful vibration. Designed with a height fine tuning balance nut. Suitable for speaker, amplifier, CD DVD player, turntable recorder, Chassis, Instrument, etc. Specifications: Color: Gold Pad size: Diameter: 25mm, Thickness: 4mm Spike size: 36 * 6mm Plating: Gold plating Material: Copper Package List: 4 x Base Pad 4x Spike.The speaker shock base pad is used between spike and ground, to minimize the harmful vibration. Spike size: 36 6mm. Designed with a height fine tuning balance nut. Pure copper material for better effect.