DescriptionIf you are looking for professional calibration weights, then your research is here. That's because our products can meet your needs. It is made of good material and craftsmanship, durable and practical, and can provide you with stable working performance.Features- Color:Silver.- Material:Steel. - Size:4.00X2.00X2.00 cm/1.57X0.79X0.79 inch. - Constructed by steel material, featuring anti-oxidation and good finish. - Good choice for keeping your precision scale calibrated and accurate. - Polished surface and smooth edges, easy to clean and do not hurt your hands. - Great for precision balance test, diamond scale, educational purposes. - It is a good helper for doing experiments in the laboratory and a great teaching tool.