ITEM NAME:4Piece 20x8mm Speaker Isolation Feet Pad Stand, Aluminum Cone Pad Isolation Base Description: Diameter:20mm. Height:8mm. Material: Solid Aluminum CNC Machined. Mounting Screw Hole Diameter:3.5mm. Suitable for most of pointed spikes, Hi-Fi, speakers, turntables, computers, printers and other sensitive equipment. Package Includes: 4 Pieces Speaker Isolation Feet Pad SKU: DMO0014029768008045.4 Pieces Speaker Isolation Feet Pad. Material: Solid Aluminum CNC Machined. SKU: DMO0014029768008045.