Rigid Clear Polystyrene Jars offer glass-like clarity with a smooth surface that is slip-resistant. Jars are ideal for storing and collecting specimens and lab supplies. Wide neck and straight sides facilitate easy recovery of contents. Attached PP SturdeeSeal® PE Foam Lined Caps are known for good impact strength, cost effectiveness, and pliability. These polypropylene closures with foamed polyethylene liners have excellent sealing characteristics and offer good chemical resistance including acids, alcohols, alkalis, aqueous products, cosmetics, household oils and solvents.