Geomag promotes Pro-L as the sets for more expierenced and mature builders. They have calm colors and more powerful magnets than other sets, so you can assemble bigger crafts from these sets.
GEOMAG Pro-L
Geomag promotes Pro-L as the sets for more expierenced and mature builders. They have calm colors and more powerful magnets than other sets, so you can assemble bigger crafts from these sets.