These wide-mouth glass bottles are designed for secure storage of various chemicals and liquids. The ground glass stopper ensures an airtight seal, preventing any leakage . Ideal for laboratory use, these bottles are for storing reagents, samples, and other sensitive substances, maintaining their integrity and purity. Features -Color:Brown -Material:Glass -Size: 9.10X4.30X4.30cm/3.58X1.69X1.69in -Capacity:60ml -Airtight seal: the ground glass seal design effectively isolates air and , maintaining the purity of reagents, ideal for chemical experiments and the pharmaceutical industry -Wide mouth design: the wide mouth design facilitates easy sampling and cleaning, enhancing laboratory operation efficiency and reducing risks -Dropper bottle included: comes with a dropper bottle for precise reagent dosage control, suitable for precision experiments and microanalysis needs -glass material: made of glass to effectively block ultraviolet rays, protecting photosensitive reagents and extending their shelf life -Versatile use: suitable for storing various chemical reagents, essential oils, and laboratory samples, meeting the needs of research, teaching, and industrial applications Package list: 3 x bottles