Provides optimum cabin ventilation rigged over the hatch by 4 nylon eyelets + an eyelet to hang the wind scoop from halyard. A fibre glass rod maintains wind scoop tensioned.FeaturesUltra-light 100 % polyester: Does not flutter in the wind and prevents any annoying whistling and flapping noiseTrimmed with a reinforced band over the seams, for increased durability and optimum strain resistanceCan be kept fairly taut and can cope with strong windsSpecificationsMaterial: PolyesterBase Dimension: 450 mm x 450 mmBase Dimension Unfolded: 140 cmLength: 6 cm