1. Description: Brand new, high quality. 2. Features: - Brand new solid aluminum speaker amplifier isolation feet. - Suitable for speakers, amplifiers, instruments, equipment, turntables, CD - DVD players, DACs, etc. 3. Specifications: - Material: Solid aluminum. - Processed by CNC. - Colors: Silver, black, gold. - Surface treatment: Anodizing, sandblasting. - Diameter: 40 mm. - Height: 20 mm. - Diameter of mounting screw holes: 4.5 mm. - With removable anti - slip rubber rings. 4. Notes: - Conversion: 1 cm = 10 mm = 0.39 inches. - Due to manual measurement, a tolerance of 0 - 1 cm is allowed. Please make sure you don't mind before bidding. - Due to different monitors, the images may not reflect the actual color of the item. Thank you! 5. Package includes: Quantity: 4 pieces per batch.