This compas features the legendary accuracy and legibility of the Contest card, with a smaller footprint on bulkhead or mast. Ideal on agile sailboats and sportsboats up to 9 m (30 ft). Compatible with drilling Ø of former model same size. Fits any bulkhead thickness : standard thickness (40 mm max) : the compass is secured with threaded rods. Thick or double bulkhead : the compass is secured with Parker screws on both sides of the bulkhead. Card: Excellent legibility whatever the weather conditions and light. Conical, highly stable, 81-mm apparent diameter. Individually balanced and Graduation every 5° and compact figures for easy reading. Materials: All parts fully UV-ray treated and Scratch resistant dome.