Our German-made ballpoint refills fulfill the promise ballpoints brought to writers from the very beginning of ballpoint technology in the 1950s–reliability, ridiculously long write outs, and shelf-life so long your grandson might enjoy it in his retirement. Our Classic ballpoint refills fit all Levenger full-size ballpoint pens, most notably our True Writers, L-Tech and Engineer pens. The right choice if you don’t mind putting a bit more pressure on your pen, and especially if you’re writing on multi-part forms or addressing envelopes, since the ink is highly water resistant. Equivalent to Schmidt P900.