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 luer lock male Packaging: pack of 1 case of 4 Mfr.: Corning, 431510 Tubing I.D.: 1/8 in. Volume: 1 L