Vials and caps are MADE IN USA. Borosilicate clear glass vials with screw-on black phenolic caps. These practical vials are made with heavy borosilicate glass for exceptional strength and durability. Great for storing a wide variety of items: from crafting, cosmetics, party favors, kitchen herbs and spices, powder, essential oils, perfumes as well as pharmaceuticals, pills, lab samples and others. Capacity 8 dram = 1 oz = 30 ml approx. Please read description carefully. If you have any question, please feel free to contact me at your convenience. All sales are final.