*** Price Includes Global Airmail Shipping of US$8 *** !!! BUY 3 pcs & GET ONE EXTRA FEE !!!! !!! PAY for 3 pcs and GET 4 pcs !!! Features: For elimination of vibration pick-up from supports in Audio Equipments 　 From high quality material and professional craftsmanship 　 Provide both isolation and support 　 Manufactured from precision machined copper and elegant gold plated surface 　 Suitable for improving sonic characteristics. (Air and details) 　 Size : 26mm height x 28mm diameter 　 Come in pack of 4 pcs