Features: brand new and high quality Made of high-quality materials durable Solar automatic photoelectric welding mask PC board protection board Protective mirror for hydrogen arc welding electric welding and cutting The protective sheet is made of fire-resistant and anti-drop PC material (usually called plastic glass). The inner and outer protective sheets are getting smaller and smaller both inside and outside. The external protective sheet is mainly used for welding sparks and external spatter. The internal protective plate mainly blocks dust. Product parameters: Name: Protective board Color: green Material: PC Size: about 110 * 90mm / 115 * 90mm / 120 * 95mm / 123 * 98mm / 133 * 114mm / 138 * 126mm (optional) Package list: 10 *Protection board Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data.