Wooden Periscope by labpro tripod stand apparatus Montstar Measuring Tools ensures that

Montstar Measuring Tools ensures that you can achieve the perfect measurement every time

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This product can see small organism which can't seen by naked eyes

SSU Vernier Caliper with box 150mm/6 inch

Wooden Periscope by labpro tripod stand apparatus Montstar Measuring Tools ensures thatWooden Periscope by labpro An optical instrument that permits the view of an otherwise obstructed field above or below the level of viewer. Comprising a z shaped square tube with both the projecting arms having plane mirrors mounted at 45 degree facing each other.