What is the distinctive feature of snap lid bottles?

The distinctive feature of snap lid bottles is that they have a hinged cap with a snap-on seal and a latch. This design provides a secure closure that prevents leakage, making them ideal for transporting and storing various liquids and samples. The snap closure mechanism is user-friendly and allows for easy access while ensuring that the contents remain contained. The unique design of the cap enhances the bottle's functionality by combining the convenience of a hinged lid with the reliability of a snap-on seal, making these bottles especially suitable for laboratory and field applications.

Other options present characteristics that may not universally apply to snap lid bottles. While some might be made of metal, snap lid bottles are commonly made from plastic and are used in various contexts beyond just being made of metal. The notion that they are always blue in color is misleading, as snap lid bottles come in various colors and finishes, depending on the manufacturer and intended use. Lastly, although they can be used for organic samples, this is not a defining characteristic of snap lid bottles specifically, as many types of bottles can accommodate such samples depending on their material and design.