This bench mounted shield is fitted with a flexible arm which connects to a heavy strong polished stainless steel base plate for secure use. The shield measures 120mm long x 120mm high and is made from Didymium glass for ultimate beadmaking protection.The flexible arm is 500mm long and so the base can be placed out of the way on your bench and the screen will sit nicely in front of the torch. This is ideal for beadmakers who struggle with wearing normal safety glasses.