4PCS 40*10mm Aluminium Alloy Amplifier Pad Anodizing Sand Blasting Amplifier Pads Feet - Silver Features: To raise the height of amplifier to help create a real stereo surrounding sound. Helps absorb shock. Made of aluminium alloy, which makes these amplifier feet durable, fadeless and hard to oxidize. Rubber ring is detachable. material enables these 4 pieces of feet to work for a long time. Specification: Product type: Amplifier Feet Material: Aluminium alloy Diameter: 40mm Height: 10mm Screw hole diameter: 5mm Surface treatment: Anodizing sand blasting Rubber ring: Detachable Number: 4PCS Color: Black, gold, silver for your choice Package size: approx. 15.4 * 9 * 1.2 cm/ 6.1 * 3.5 * 0.5 in Package weight: 112g/ 4.0oz Package List: 4 * Amplifier Feet