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15 Piece Metal Element Cubes - Density Cube Set for a Periodic Table of Elements Collection - Pure Tungsten Cube, Titanium, Bismuth, Aluminum, Iron, Copper, Chromium, + 9 More (.39 inch/10 mm)
18 Pcs Metal Element Cube Density Cubes 99.99% High Purity, Periodic Table of Elements Collection for Element Collections Hobbies, Pure Tungsten Cube, Iron, Aluminum, Bismuth, 15 more (.39 inch/10 mm)
STPCTOU Magnesium Cube Pure Metal High Density Cube Laser Engraved Cube for Element Collection Lab Material Periodic Table of Elements Collection DIY Teacher Science Creative Gift (Magnesium, 1 Inch)
PFCKE Magnesium Cube Metal Density Cubes Pure Metal High Density Element Cube for Element Collections Lab Experiment Periodic Table Collection DIY Teacher Science Creative Gift(Magnesium,1 Inch)
1 Inch Magnesium Cube Metal, High Density Element Cube Pure Metal, for Element Collections Lab Experiment Material,Elemental Collection Hobby,Gift for Children (Magnesium)
1.5" 38.1mm Magnesium Metal Cube Mg up to 99.9% Pure Periodic Table Element Engraved Density Collection Science Education Display Block Cube + Acrylic Case Box - 1PC