20bolas de acero de mm de diámetro (Estos NO son imanes) (30 Paquete)

tenga en cuenta: Estos NO son imanes
These steel spheres with a diameter of 20 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 (Ni-Cu-Ni).

These Steel Balls are sold in packs of 30. Pedir una cantidad de 1 y obten 30 Steel Balls. Pedir una cantidad de 2 y obten 60 imanes. Pedir una cantidad de 3 y obtienes 90...