Description: Material: Crafted from quartz, this honeycomb soldering board offers durability and reliability for repeated use in various metalworking applications Feature: The rectangular and round shape of this small honeycomb board is fits for detailed workspaces and tasks High-Temperature Resistance: This quartz honeycomb welding brick is designed to withstand high temperatures, making it ideal for working with gold, silver, and copper in jewelry processing Efficient Heat Insulation: The board provides great heat insulation properties, ensuring safe and efficiency during soldering tasks Package Includes: Each purchase includes a piece of the honeycomb soldering board, the honeycomb welding plate is equipped with honeycomb vent, which can make the welding flame bigger and more sufficient, and the effect is better Specification: Material: Quartz Size Chart: Rectangular S: 16.3cmx7.2cm/6.42inchx2.83inch Rectangular M: 13.8cmx9.8cm/5.43inchx3.86inch Rectangular L: 20cmx14.3cm/7.87inchx5.63inch Round S: 10.5cm/4.13inch Round M: 13cm/5.12inch Round L: 15cm/5.91inch Round XL: 16cm/6.30inch Round with Hole:15cm/5.91inch Package Includes: 1 Piece Honeycomb Welding Brick Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.