Heat Pump Riser, Size: 3" 2 Piece, Maximum Uniform Load: 2,000 lbs When 4 are Used, Color: Gray, Material Type: Polypropylene, Butyl Mastic Patches on Top and Bottom - Eliminates Slipping, Reduces Vibration and Noise, Application: Heat Pumps, Condensers, Air Handlers, Weight Capacity: 400 Lb, Unit's weight: 0.6375 Lbs, Dimensions: 41/100"H x 7/16"W x 4/5"D SOLD AS 4 PACK