THESE PADS ARE 1" THICK WITH RIBS ON TOP AND BOTTOM Has a solid cross-ribbed design (1" thick). Each of the pads has a 5/8" hole in the center so that you can easily anchor through the center of the pad. These are perfect for use with air compressors, HVAC, Machine, Fitness equipment, Washer and Dryer, appliance, speaker, garage door, furniture, table, bookshelf, bed frame and all sorts of heavy duty equipment. Using these vibration pads will cut down on operating stress, equipment wear, and noise with your machinery. Made from high quality elastomeric materials Compounded for excellent resistance to aging, compression set & oil Recommended maximum loading capacity: 60 lbs per square in, Max 960 lbs per pad