The wide mouth design of these plastic bottles makes them for sampling and storing reagents, medicines, and other liquids. The black cap provides a tight seal to prevent leaks and contamination. Their clear construction allows for easy monitoring of the contents, making them suitable for various scientific and educational applications. Features -Color:Multi -Material:PET -Size:6.80X4.00X3.50cm/2.67X1.57X1.38in -Clear visibility: the transparent plastic construction allows for clear visibility of the contents, making it easy to identify and monitor samples -Secure sealing: equipped with a black cap, these bottles ensure a tight seal, preventing any accidental spills or contamination of the samples -Convenient access: the wide mouth design makes it easy to pour and liquids, enhancing the usability of these bottles in various settings -Multifunctional: ideal for laboratory, classroom, and household use, these bottles are versatile and can be used for storing a wide range of liquids and samples -Laboratory use: providing sufficient quantity for multiple uses and ensuring you always have a bottle on hand when needed Package list: 10 x PET sampling bottles