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 Spike Plating: Gold Plating Material: Copper Features: Durable, Mini Size, Accessories Spike 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 items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 4 x Spikes 4 x Pads