Air exhaust jack, 1.double-roof and double-floor 2. ... Weight (kg)Inflated wayMaterials4000KG64756.8Tailpipe exhaust+Air compressor1000D Denier 1.0mm PVC CONTENTS: 1x air jack 2x filler tubes 1x pair ... carry bag and ready to use.Air jack use the vehicle’s own exhaust to inflate the jack body, ... by the air compressor.Great of use if vehicle stuck in sand, mud, snow or soft ground. Air Exhaust Jack