Ensure a secure and reliable seal with our clear snap caps, designed specifically for 16mm vacuum tubes and glass tubes. Made from durable polyethylene material, these caps provide an airtight fit to protect samples from contamination and evaporation. Their clear (natural) design allows for easy visibility, making them ideal for quick identification in busy laboratory environments. Perfectly suited for various applications, these snap caps offer a dependable solution for maintaining sample integrity in clinical, research, and diagnostic settings.