13mm dia Steel Balls (These are NOT magnets) (100 パック)

ご注意ください: These are NOT magnets
These steel spheres with a diameter of 13 mm are great for joining with magnets. And when combined with rod magnets, you can build some pretty crazy structures.
The steel balls are made of high carbon chromium steel that contains 1% carbon and 0,5 %–1,65 % chromium. The spheres are plated with nickel (ニッケル - 銅 - ニッケル).

These Steel Balls are sold in packs of 100. の量を注文します 1 そして、get 100 Steel Balls. の量を注文します 2 そして、get 200 マグネット. の量を注文します 3 そして300を獲得します…