Note: The color of the product we ship is the color in the first picture, and the specification and quantity are shipped according to the quantity and specification described in the title. Our product description:High temperature, Not resistant to acid and alkali, Resisting cold and heat, Chemically resistant.Suitable for anhydrous Na2CO3 and other weak bases substances.Highest temperature resistance: around 1700 degrees Celsius.Note:Does not apply to Na2O2, NaOH and other strong alkaline substances, it does not apply to K2S207 and other acidic substances.How to use:1.In general, put the Product material into the crucible and then heated.2.Due to the raw Product material of products has thermal expansion, heating or cooling too quickly can cause cracking, please warm up or cool down as slowly as possible to extend product life.Specifications:Product material: AluminaColor: ApricotBrand name: BQLZRSize: 8x4x1.8cm/3.15x1.57x0.71inch(LxWxH)Weight: 79gPackage include:1 x CrucibleNote: Because the model and display effect of the monitor may be different, there may be slight differences in color, and the size is manually measured, there may be an error of 1-2cm, please understand.