They are magnetic ball bearings are strong magnets that you can make in different shapes or objects.
Each ball is about 3 mm, 216 pcs balls, with Box.
It can improve the creativity; stimulate left and right brain effectively.
Adopting reliable magnet material, it is non-toxic and harmless. Creative and hot puzzle toy for enhancing assembly ability
Please note this is a toy, but not suitable for persons under 16 years.