An illustration of three test tubes. The test tubes are arranged in a horizontal line, with the first tube on the left, the second tube in the middle, and the third tube at the bottom. All three tubes are light blue in color and have a cylindrical shape. The first tube is red, the middle tube is light blue, and it is slightly larger than the other two. The tubes are attached to a brown metal frame.
User dandin uploaded the image
User dandin uploaded the image
