USE FOR: Microwave DyeingUSE ON: Protein fibers like Silk, wool, hair (fur), etc. Dupont French Silk Dyes are very popular throughout the world and are used by many professional silk artists because of the wide color range and intensity of colors offered, the permanence of the dye, and the superior way they lend themselves to salt and watercolor techniques. These dyes are very concentrated so for best results be sure to read the included pamphlet. It is important to remember the Classique H Dupont dyes are for use only on animal fibers, do not apply them on viscose, polyester, etc. This kit is designed for microwave dyeing method and does not need steam setting to fix and comes with: 4 - 50 ml H. Dupont steam set dyes (colors may vary but typically include: Black, Red, Yellow, and Blue) 1 - 3 ml pipette 1 - Instruction Pamphlet This is a great way to yield amazing results without much effort. So easy to use. Perfect gift idea for loved ones! Please Note: Some kits contain vinegar, some contain an extra dye in lieu of the missing vinegar. Stock is mixed and we have no control over what you may get. To set the dye, you will need some white vinegar.