Plastic beakers are laboratory vessels made from durable, chemical-resistant plastics such as polypropylene (PP) or polymethylpentene (PMP). They are used for mixing, measuring, and storing liquids in situations where glass beakers may be prone to breakage or where chemical resistance to certain reagents is required. Plastic beakers are lightweight, shatterproof, and often autoclavable, making them ideal for routine laboratory work and field use.