Complex sentence: However, some manufacturers combine a strip of ferrocerium along with a strip of magnesium in the same item, the idea being that you scrape off a few grains of magnesium into the tinder and ignite it by striking the ferrocerium.
Split into simpler sentences: However, some manufacturers combine a strip of ferrocerium along with a strip of magnesium in the same item. The idea being that you scrape off a few grains of magnesium into the tinder and ignite it by striking the ferrocerium.