Sterile Empty Vials with Separate Rubber Stopper and Burr-Free Aluminum Plastics Cap,Need to Crimped with Pliers Individually Packaged 20pcs by ZHANXUBIO (3ml)

QUALITY MATERIALS : Made of high borosilicate glass, vials offer superior thickness compared to standard glass, providing exceptional heat resistance, chemical resistance, and durability against drops COMPLETELY STERILIZED : Our sample vials are produced in a controlled aseptic environment, ensuring clean ,complete sterilization,can be used directly UPGRADED PACKAGING : Each pack includes 20pcs sterilization vials, perfectly need your experimental needs with ample supply VERSATILE USAGE : Sample vials are designed for flexible use, can fill them with liquids, solids, or powders before sealing SAFETY : Designed with burr-free aluminum-plastic covers, ensuring that users are protected from sharp metal edges during handling and use