Designed to suit most common anchor bolt sizes at the center and corners of the pad while not having to generate a hole with the thickest Portion of the pad. [ NOISE ATTENUATION ] Purr similar to a cat! The Silent Men' washing equipment shock absorbing mat Most important profit https://floor-mountedequipmentvib81346.bloggip.com/39655551/5-simple-statements-about-compressor-vibration-pads-explained