S: Our molten metal crucibles are made of high quality fused quartz using advanced ceramic processing technology. These crucibles feature exceptional heat resistance up to 3272°F / 1800°C, ensuring reliable performance during high temperature melting processes. The stainless steel handle is comfortable to hold and easy to operate. MULTIFUNCTIONAL SET: The set includes four crucible trays (two each of 250 g and 100 g) and two stainless steel pliers with whip handle 2A, providing all the necessary tools for precise and efficient metal melting. CONVENIENT DESIGN: Our crucibles feature tapered sidewalls and pour spouts for easy material removal and increased user convenience. WIDE RANGE OF APPLICATIONS: Our crucibles are suitable for precision casting processes involving metals such as gold, silver, copper, brass, and alloys. IMPORTANT: To optimize the performance of your quartz ceramic crucible, we recommend slowly heating and applying a borax glaze before use. Following these steps not only produces the best results but also extends the life of your crucible, allowing you to maximize its value and effectiveness. MATERIAL: Metal COLOR: As Shown PACKAGE CONTENTS: 2 x stainless steel tongs, 2 x 250g crucible trays, 2 x 100g crucible trays. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.