Material: flat bottom flask orange polypropylene cap polycarbonate (medical grade) polypropylene cap wide-mouth wide-mouth neck description flat bottom, Erlenmeyer flask Sterility: sterile Feature: cap closure type Vented cap Packaging: pack of 1 pack of 24 case of 4 Mfr.: Corning, 431516 Tube Size: ~15 mL Tubing I.D.: 1/4 in. Volume: 1 L Working Volume: 4 mL