Full turn screw thread provides an excellent leak-resistant seal

Translucent polypropylene container is tough, durable, non-breakable, and inert. It tolerates strong acids, bases, and most organic solvents. Sterile containers have a integrity seal or O.R. package. Cups are graduated in both a U.S. and metric scale. Individually wrapped and supplied with green cap. Meets the NCCLS Specimen Handling Guidelines for primary containers.