Description: Contain 26 tools accessories, including glass and paper Microwave Kiln and DIY Fusing Glass Jewelry Set - Professional Simple Making DIY Jewelry Glass Fusing Tools Set The microwave kiln is a container kiln consisting of a base and hood made for use in a household microwaveoven. The kiln is made of a white insulating cermics fiber and lined on the inside of the chamber with a black compound that absorbs the microwave radiation and heats up to 1650°F. The heat from this compound is then transferred to the chamber and to the piece being fired. It takes between 6 to 8 minutes to reach peak temperature ranges depending on the size of the microwave kiln, the work being fired, and the microwave's wattage. After the firing, the kiln needs to cool for at least 30 minutes before being opened. Designed for working primarily with small glass objects or precious metal clay, the microwave kiln is also suitable for firing small clay pieces, from beads and pendants to test tiles or small sculptural objects. Specification: Material: Cermics Diameter: Approx. 12cm / 4.72in; Inner hole dia: approx. 7cm / 2.76in; small hole dia: approx. 1.2cm / 0.47in Size: Approx. 7.5x7.5cm / 2.95x2.95 in Size: Approx. 210x297x1mm / 8.27x11.69x 0.04in Package Includes: 6Pieces Microwave Kiln Kit for Glass Fusing 20Pieces Ceramic Fiber Paper : The optimum firing time for various materials and sizes needs to be determined through test firings. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2mm error in size.