Photo 1 of SMTOER Crack Monitor with 2 Pre-Set Pegs, Tell-Tale Wall Deformation Measurement & Recording Tool(5 pcs)

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Photo 1 of SMTOER Crack Monitor with 2 Pre-Set Pegs, Tell-Tale Wall Deformation Measurement & Recording Tool(5 pcs)Photo 2 of SMTOER Crack Monitor with 2 Pre-Set Pegs, Tell-Tale Wall Deformation Measurement & Recording Tool(5 pcs)