Description Marine Speedometers work by measuring the speed of water coming into a tube compared to air pressure to estimate a boat’s speed. These 38mm round fridge magnets are individually hand-pressed in our workshop. They feature a steel front plate and a durable plastic back, concealing a high-strength neodymium magnet. The artwork is printed on photo paper and protected with a hardwearing, clear polyester film. Discover more from Rainbow Badges Subscribe to get the latest posts sent to your email. Type your email… Subscribe
