10mm Inner diameter single bore aluminia Aluminous porcelain ceramic tube.Materials: Alumina Oxide Ceramics (Al2O3)Size: 10mm inner diameter, 15mm outside diameter, 15mm overall lengthShape: Single bore pipeVoltage insulation: 1000VMaximum temperature resistance: 1600 degree in Celsius/2912 degree in fahrenheitWeight: 37gApplication: electrical heating wires, insulators, high temp protectionPackage Content:10 pcs 10mm Inner Dia. Aluminia Ceramic Pipe