A Spectacle Blind is also called Figure-8 Blind and it is generally sandwiched amid two gaskets. This metal piece is cut to fit amid two pipe flanges. As a manufacturer, we - Kisaan Steels Private Limited, use two metal discs to make this blind. The said discs are attached together via a small steel section. The Spectacle Blind has two ends, one with opening for permitting flow and second for stopping the flow. First end is applicable during operation and second one during maintenance.