PULAID Navigational Aid for RYA/MCA training or for your own boat. The pack includes all 6 double sided discs contained in a handy pouch.Dial a rule-Dial a shape-Dial a Flag-Dial a buoy-Dial a sound signal-Dial a light.Very easy to use, simply dial up. Excellent condition - kept in pouch at all times so looks as good as new.