PRISM ! ... the lightest (137 g), fastest (4Hz-4x p/sec) and coolest (waterproof up to a water depth of 3 m) race compass in the world. Class-compliant, because it is a simple compass with no GPS. Solar-powered! Giant 30 mm figures, weighing just 137 g! 250 degree view. Shipped with bracket, laser bracket optional. Kieler Woche FESTIVAL SPECIAL!