Description: Speaker Stand Feet Cone Base Pads Stick-on Shockproof Mat For Turntable Isolation Subwoofer CD Audio Amplifier. Compatible Type: Feet/Pads Material: Aluminum Alloy . Sand Blasting Diameter: 30mm Height: 11mm Mounting Screw Hole Diameter: 4.5mm. Feature:Machined With removable non-slip rubber ring Suitable for speaker,amplifier,instrument,equipment,turntable,CD DVD player,DAC etc. Package Included: 1 x Feet Pad Specification: Material: Aluminum alloy Size:30x30x10mm Package Includes: 1 Piece Aluminum Isolation HIFI Feet Pad