Features Wide Application: Mainly used for air compressors, diesel engines, gasoline engines, water pumps. Used as damping elements for vibration and noise control. Main Function: Protect the machine's normal work and get good surroundings, reducing noise and shock obviously. Geometrical Design: Simple geometrical design supports dynamic performance and stability under lateral/sideways forces. A Good Buffer: In audio equipment and instruments, avoid machine vibration interference, having a good buffer. Easy to Use: Use custom LCD screen and four operation keys. Easy to understand, easy to operate and set. Specification: Material: Rubber + Metal Color: Black + Silver Optional Size: VV20*10 M6*18, VV20*15 M6*18, VV20*20 M6*18, VV25*20 M6*18 Quantity: 4pcs Package List: 4 x Rubber Mounts Package List