ISO-Cube anti-vibration pads are solid rubber tough. The natural rubber pads are designed to reduce vibration and noise emanating from refigeration or AC equipment. Circular design offers a suction cup effect eliminating the need to bolt the pads down. A standard 18" (457mm) pad divides into eighty-one 2" (51mm) segments which may be cut or torn into smaller pads. The 50 durometer pads will withstand a load of 180 psi (12.4 bar) with great resiliency.