Proof Load Testing Water Bags used for the Free Fall Lifeboat Davit or Free fall Lifeboat launching appliances, instead of the traditional testing tools,Our company could offer the water testing bags with the capacity of 1MT, 2MT, 5MT, 10MT, 20MT, 25MT, 35MT, 40MT,50MT&100MT for 55KN,65KN ,70KN or 100KN Free fall Lifeboat davit with good price and quality from BV approval.