Traditional Mason jars are upgraded to an amber color to effectively block 99percent of damaging UV rays. Designed to deliver a performance-driven benefit to keep herbs and spices a the peak of freshness. Safe for canning Suretight lid helps keep foods canned up to 18 months. Bpa free jars Lids and bands. Classic Ball embossments. Dishwasher safe. This package contains four 16 ounce wide mouth canning jars with lids. Made in USA.