The popular form of test weight now is the rectangular weight, which is made of 304 stainless steel. Each weight is made of 304 stainless steel to help ensure consistency in laboratory testing. They are available in various sizes like 50 grams, 100 grams, and 500 grams, so they are suitable for every project! The rectangular series is designed for high-precision measurements in the laboratory. We have a large stock of metal and different size weights to meet your needs. Nominal values are written on each weight and the values are easy to read. The weight material is not easy to wear, not easy to rust, not easy to corrode. It does not fall off easily. Easy to weigh, measure and weigh directly on the balance. The rectangular series is suitable for high-precision laboratories such as measuring institutions, pharmaceutical factories, food industry, and environmental testing institutions. We use British imported inlay, density 7.9g/cm3, with SGS validity test certificate.