4 oz frosted glass straight sided jars are paired here with no-rust aluminum PE lined caps. The frosted finish on the jar allows the natural color of your product to show through. The liners paired with these jars are composed of a compressible PE foam that creates a stable seal. PE liners provide good resistance to acids, alkalis, solvents, alcohol, oil, household cosmetics, and aqueous products. These jars could be great for packaging body scrubs, bath salts, cosmetic creams, and more.