Subacqua free-opening balloons are available with different lifting capacities. This one is for 100kg.

Elevator ball made of nylon with reinforced stitching and heat sealed to prevent cracking and air leakage.

The balloon attachments are made of stainless rings joined to the nylon by means of a very strong thermosealing to prevent breakage or tears. These rings are placed so that with correct use and good balance the ball is fully compensated.

The balloon carries in the upper part an exhaust valve which is actuated from below through a string. With this valve, the ascent is regulated.

The uses of this type of balloon can vary from an anchor lift to a refloating ship.