Features: Cutting edge polymer technology of the Rubber Vibration Isolator meet and exceed OEM specifications Composite material with natural rubber by innovative synthesis make the rubber mounts more efficient and durable Adapt to most Mini Spit System Condensers Let air flow through the bottom, making it cooler Eliminate vibration and sound transfer to the structures Sturdy thick, natural rubber for maximum dampening effect Works with any brand name Mounted Split Air Conditioner Heat Pump Systems Specifications: Base 4 3/8"x 2" Tall 3 1/8" Support up to 165 lbs for all 4 pcs