Reduces noise with rubber pads on top and bottom for anti-slip performance. Isolates vibration transmission and minimizes low-frequency noise caused by vibration, helping provide a more comfortable environment for your family. Practical application: The air conditioning bracket cushion is designed for heavy-duty indoor or outdoor air conditioning units, supporting up to 800 pounds per set (4 pieces). Easy installation: Shock-absorbing feet are simple to install, with reinforced load-bearing capacity and a stable, secure structure. Wide application: These noise-absorbing pads can be used under air conditioners on balconies, rooftops, or concrete surfaces without adding bulk. Compatible with most mini split air conditioner condensers. Package includes: 4 pcs/set of anti-vibration rubber mounts. Base: 4.33 x 1.96 in (11 x 5 cm); Height: 2.3 in (5.8 cm).