4pcs 316LSS Spike Altoparlante Acciaio Inox Antiurto Supporto Base Pad Isolamento
4PCS 316L Stainless Steel Enthusiast Speaker Adjustable Spike Shockproof Isolation Stand Feet Cone Base Pads #Silvery. Spike or Pad ( The type you choose ) x 4. The working principle of the shock-absorbing pin is simple.