100pcs 50ml Plastic Clear Empty Liquid Bottles Vial Reagent Sample Containers AUMaterial: PET bottle, Plastic Screw sealing lid protects frome leakage. Capacity: 50ml Diameter x Height(with lid on): 50ml: 42mm x 68mm Good sealing. It used in many fields, like lab experiment and home use for taking certain volume liquid, paints or pills, etc. Please note that there are scratches sometimes due to the mutual friction between the bottles during the transit. It does not affect use if you wrap those bottles with your own outer covers.