Caplugs Evergreen 20 ml Vials are constructed of high-clarity polypropylene copolymer with high density polyethylene screw caps.

• Externally molded-in graduations in 3 ml intervals
• Molded-in frosted writing area for easy labeling
• Specially designed tray helps eliminate accidental knockovers and expedites processing
• Vial has an octagonal-shaped base which locks into the alpha-numerically labeled tray to allow for easy one-handed capping and uncapping

These vials have a wide mouth opening for ease of use and the clarity of polypropylene material provides for clear visibility of the contents.