Air exhaust jack, 1.double-roof and double-floor 2.Stand weight ... ParametersLifting capacityDiameter (cm)Height (cm)Weight (kg)Inflated wayMaterials4000KG64756.8Tailpipe exhaust+Air compressor1000D Denier 1.0mm PVC CONTENTS: 1x air jack ... ready to use.Air jack use the vehicle’s own exhaust to inflate the jack body, is capable of lifting ... stuck in sand, mud, snow or soft ground. Air Exhaust Jack