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Weight 2.6 - 2.8 Grams
Hardness <1.2
Roundness <0.25mm
Abacus Digits Number Puzzle Mathematics 17 Rods
Stainless Steel 200mm 4-28 Mesh 5-0.8mm
Optical glass Equilateral Triangular Prism
Sadaf Crepe Craft Paper For Wrapping Art & Craft
Laboratory Pipette Adjustable Micropipette