High-quality materials: The welding plates are made of high-quality quartz, which is and can reflect heat. Easy to use: The honeycomb welding plates are designed with holes for fixing pins, which can effectively fix jewelry on the honeycomb bed. You can use it to prevent desktop and reduce losses. The package includes: You receive 2 round and rectangular honeycomb ceramic welding plates and 20 steel pins. Different shapes can meet your various needs. Size details: The size of the square and rectangular ceramic welding plates is approximately 134x93x13mm / 5.3x3.7x0.5 inches, and the diameter of the round one is 109mm / 4.3 inches with a thickness of 13mm / 0.5 inches. Wide application: These welding accessories are suitable for gold and silver jewelry welding processing, gold casting processing, or other complex DIY processes and maintenance tasks., Weight: 0.63272669194 Pounds, Manufacturer: Kueohse