Made of good material, smooth, safe and durable for use, not easy to break or deform, long serving life. These test tubes c an be used for scientific experiments, jewelry accessories storage, holding solid or liquids, etc. Features -Color:As Shown-Material:Plastic-Size:10.00X1.60X1.60cm/3.93X0.63X0.63in- Widely applied in home, laboratory, travel, school, university, training institution, research institute, etc. - It can be used not only for chemical experiments, but also for storing daily liquids, such as cosmetics and emulsion. - The plastic stopper is easy to seal and tighten, and it has good anti-leaking performance even outdoors. - Suitable for carrying, light in weight and compact in size, which is convenient to carry and use when traveling. - The surface of this test tube is smooth and wear-resistant, which is safe for you to use.Packing list: 10 x test tube