Easy to use waterproof guide and device for tuning your kit correctly, including exact harness line position set up for every sail between 4m and 8m. Suitable for all windsurfing levels, all sizes of people, on all windsurfing kit manufactured since 1996.

Designed and developed by Guy Cribb from his INtuition windsurfing clinics, tested on the world's best windsurfers kit - including Jason Polakow, Ricardo Campello and Nik Baker, as seen in Windsurf magazine UK June, July and August issues 2005.