If anything the pen itself is on the smaller side but is approximately the size of a regular bic pen but thicker. It came with one ink cartridge but no instruction on how to insert it! After some googling really all you have to do is press it in fairly strongly. Flows perfectly, could not be happier with its performance.

Lightweight and great for someone with tiny little t-rex hands like me, easy enough to suss out etc., but there's just one problem: The ink doesn't flow. At all.

Writes decently enough, I suppose. You get what you pay for! ink does stop flowing sometimes though…