Air exhaust jack, 1.double-roof and double-floor 2.Stand weight : 2t , ... Weight (kg)Inflated wayMaterials4000KG64756.8Tailpipe exhaust+Air compressor1000D Denier 1.0mm PVC CONTENTS: 1x air jack 2x filler tubes 1x pair of ... bag and ready to use.Air jack use the vehicle’s own exhaust to inflate the jack body, is capable of lifting vehicle ... vehicle stuck in sand, mud, snow or soft ground. Air Exhaust Jack