Ro-Clean Desmi A/S of Denmark has been officially awarded the Guinness World Record for developing the largest offshore oil containment boom in the world. Known as the RO-BOOM 3500 this boom has an overall height of 11.5 ft. (3.5 m). 6.5 ft. (2 m) in height. This unusually large boom was developed for use in the Norwegian sector of the North Sea in Europe where the sea conditions are especially harsh with waves reaching up to 23 ft. (7 m). RO-BOOM 3500 has an overall deflated width of 3.5 m, an operational freeboard of 1.3 m and a draft of 1.5 m. The operational performance of this boom was tested extensively in the North Sea over a three-year period. The oil retention abilities were confirmed with underwater cameras.