This pack of 3D printed models buoys is the perfect tool to develop your knowledge and skill of navigating through buoyage systems. Instead of using pieces of card, utilise these 3D models to excel your learning and understanding of buoyage and prepare yourself for your exams. The set contains 16 buoys in total, including: Lateral Marks for both IALA A and IALA B Regions Preferred Channel Marks for both IALA A and IALA B Regions The Cardinal Marks A Special Mark An Isolated Danger Mark An Emergency Wreck Buoy A Safe Water Mark.