태그 아카이브: 자기 공

Magnetic ball cube – 그것은 구성 216 높은 자기 희토류 자석 (single ball diameter 5 mm), each magnet has a north-south polarity. Simply through the magnetic ball cube can improve your geometric and mathematical aspects of intuitive perception. You can use magnetic ball magic as an educational tool to combine textbooks to learn, […]