Dear Sir Madam, Part:Gasbag Name:Inflatable Boat Lifting Marine Supplies Rubber Airbag Direct Factory Application:ship luanching and landing, salvage, lifting, floating Material:Natual Rubber Special:Marine Supplies Rubber Airbag Long:8--24M Diameter:0.8--2.5M Guarantee time:3Years Certificate:CCS,BV,GL,ISO9001 Standard:ISO 2002 :17357 Usage:Rubber Airbag