TEST TUBE PS 12 BY 75MM 500 PCSTest Tube PS 12 x 75mm 500 PCS are durable disposable laboratory test tubes made from high quality Polystyrene (PS) material. These test tubes are designed for safe sample collection, storage, and laboratory testing in medical, research, and diagnostic environments. Uses of Test Tube PS 12 x 75mm Suitable for laboratory sample collection and handling Used in diagnostic and medical testing procedures Ideal for research laboratories and healthcare