Heat Pump Riser, Size: 6" 1 Piece, Weight Capacity per Riser: 560lbs, 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, Unit's Weight: 0.4188 Lbs, Dimensions: 3/10"H x 17/32"W x 5/7"D SOLD AS 4 PACK