Wind-up Speedboat

A wind-up speedboat is a toy boat that is powered by a spring-wound mechanism. The spring is wound up by turning a key or handle, and when released, the spring drives the gears and propeller, causing the boat to move forward through the water. These types of toys are popular for their simplicity and the fact that they do not require batteries or electricity to operate. They can be found in various sizes and styles, and can be enjoyed by both children and adults.