These Glass Blowing Tubes are perfect for a variety of applications. With an outside diameter of 10mm and inside diameter of 8mm, these tubes are 100mm in length with a thick 1mm wall. Made of durable glass with transparent color, these tubes feature fire-polished ends on both sides for long-lasting use. They are ideal for use as reaction vessels with small amounts of reagents at room temperature or heat. The low thermal expansion coefficient of the glass makes it highly resistant to high temperatures, up to 200 degrees. This package includes 10 tubes, each designed for reliability and durability. Please note that variations in color may occur due to photography lighting and display differences. A valuable addition to any laboratory or workshop setting.