PLA (Polylactic Acid) is a biodegradable plastic that is widely used as a 3D printing filament. It is made from renewable resources such as corn starch or sugar cane. PLA is popular because of its ease of use, low printing temperature (around 190–220 °C), minimal warping and low odor during printing. It is ideal for beginners and suitable for printing prototypes, decorative objects and models where strength and flexibility are less important.