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Maped 1947 No. 421 Technical Compass Set with Quick and Micrometric Adjustment 160 mm – 4 Pieces – Lead Case 2 mm – Pen/Pencil Adaptor – Nut – BigaMart
Amazon.com : Amazon Basics 10-Piece Math Kit - Includes Compasses, Graphite, Eraser, Sharpener, Protractor, Triangles, Ruler, and Carrying Box : Office Products