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Geomag STEM Master Box Silver Rods (248 Piece) Stacking Toyis a fun STEM learning product that features 144 silver magnetic rods and 104 non-magnetic steel balls that let you connect and build awesome creations! Ages 3 and Up.
Please note: Contains STRONG MAGNETS. Keep away from sensitive devices such as credit cards, computers, magnetic media and medical devices like pacemakers.