Tested for you: a Kaweco Classic Sport – a pocket fountain pen made of plastic – does not like to get in contact with sand, which may or may not happen in a parent's pocket. The sand got in between the cap and the body of the pen and locked it up so I couldn't uncap it anymore. Trying to force it open left lots of deep scars on the body and the inside of the cap. It still works but it is far from the buttery smooth experience it used to be.
Someone please send me the brass version of the Kaweco Sport 🥺
#FountainPens#Kaweco#KawecoSport