A spectacle blind is one that combines, Individual product both a api 6a spade flange and a ring spacer. Both a spade flange jis 5k along with can serve, Ring spacers as as separate products, When the rotation of a spectacle blind would be difficult because of space constraints. A spade flange jis 16k can otherwise be identified as a steel blanking spade, Blank, Single, Blind or a paddle blind. Spade flange jis 10k is a metallic ring used to isolate a pipe. Although a alloy steel spade flange has the same scope as a spectacle blind. For the intention behind close the pipe, A duplex stainless steel spade flange is inserted between the flanges. To open the pipe, The carbon steel spade flange following which, Is removed a ring spacer takes its place in the piping system.