【Versatile Gem Density Measurement】Ideal for assessing the density of various solid and water-sinking substances, this specific gravity rack is compatible with multiple scales and is a reliable choice for jewelry identification. 【Premium Materials】Made with high-quality materials, including an acrylic measuring cup, a sturdy metal holder, and a robust metal base tray, ensuring longevity and reliability in laboratory settings. 【Product Specifications】Features a middle bracket height of 13CM, a width of 12CM, a beaker tray height of 2CM, and dimensions of 14CM in length and 9CM in width, providing a compact yet functional design for precise measurements. 【Accurate Density Measurement】For laboratory use, this device accurately measures the density of solid and water-sinking substances, for various scales to ensure precise results. 【Scope of Application】Very suitable for jewelry, gemstones, commercial, industrial, laboratory, can measure the density of gem bare stone.