Aijiren™ reagent bottles, also called media bottles, are manufactured from high-quality, borosilicate 3.3 glass, with GL45 thread cap. With their superior chemical resistance, these bottles are ideal for storage of reagents, culture media, biological fluids, and a variety of other aqueous and non-aqueous solutions. Clear bottles are ideal for displaying items, Sizes range from 100 ml up to 1000 ml and the larger ones may be used to store preserved biological specimens in the lab. The large ones also make excellent terrariums or miniature aquariums.