Marine airbag are widely used for ship docking and launching, large heavy objects lifting and moving, sunken ship salvaging and stranding rescue etc. Compared with the traditional sliding plate and slipway，airbag has the feature of saving time and labor, less investment, flexible, safe and reliable. etc.
When classified by the diameter, the usual sizes of airbags are 0.8m, 1.2m，1.5m, 1.8m , 2.0m and 2.5m. The maximum length can be 24m. The diameter of the airbag depends on the height of the docking blocks.