Capacity 1 oz., 30 mL Capacity (Metric) 30 mL Capacity (English) 1 oz. Color Natural Translucent Description Lab Quality Wide-Mouth Bottle Diameter (Metric) Inner Neck 21 mm Material PPCO No. per Case 72 No. per Pack 12 Sterility Non-sterile Type Wide Mouth Lab Quality Bottle Closure Color Natural, translucent Neck Finish 28 mm Certifications/Compliance Manufactured in compliance with ISO 13485:2016 quality requirements. Bottles and Closures meet the requirements of 21CFR177.1520 for food and beverage use, USP Class VI. Closure Liner Linerless Closure Included Yes Autoclavable Autoclavable Closure Size 28 mm Closure Material Polypropylene Closure Type Screw Cap Diameter (Metric) 34 mm Height (English) 3.89 in. Height (Metric) 63 mm Mouth Wide Shape Round Through the Closure Dispensing No Unit Size Case of 72