This range of standard pre-made gennaker sheets has been designed to make replacing sail sheets on your boat quick and simple. They come in three standard colours: grey, navy blue and red. This is a performance specification for a gennaker sheet made from Gottifredi Maffioli Powersprint, which has an SK78 Dyneema® core with a durable polyester cover. At the cockpit end, it is finished with a Flemish eye and at the working end it has a covered eye splice plus a soft shackle, for connection to the clew of your sail. This 8mm diameter x 30m long sheet is recommended for use as a light gennaker sheet on boats between 38 - 45 ft. However, due to variations in sail sizes and cockpit setups, we suggest you double check the appropriate length for your own boat. We use the following formulae for gennaker sheet length: 2.2 * Boat Length (LOA) It is better to have a sheet 2-3 m too long than too short! N.B. Diameter recommendations are based on a medium displacement monohull. For heavy displacement boats and catamarans, you may need to go up a size in rope diameter.