Function. Load capacity 60 PSI (pounds per square inch). Please note: These rubber EVA pads are newly made and may not smell very good at first, so we recommend you use them outside for a few weeks or wash them with soap to partially reduce the smell. Application. Great for air compressors, printers, garages, HVAC systems, central air conditioning units, ductless mini splits, heat pumps, condenser units, treadmills or other heavy objects that require vibration or noise control, designed for heavy machinery that produces vibrations. Anti-slip design. The special on the top and bottom are designed to prevent the device from slipping and lift the device to prevent moisture and leaks, which extend the life of your device. Package. 4-pack of 4x4x7/8inch shock pads, with 10mm diameter hole in center. Easy to install, no tools required, just lift the machine and place the foot pads under each foot. Performance upgrade. EVA material has excellent durability and can resist various weather factors; heavy duty rubber material is anti movement, anti vibration, and sound absorbing. Product Weight: 631G/22.26 Ounces Product Dimensions (LxWxH): 10.0x9.8x2.2 CM / 3.94x3.86x0.87 Inches Color:As Shown Material:EVA Package Contents: 4 x Rubber Anti- with Hole Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.