Great tool for getting the last drop ofi nk out if the bottle without getting ink on your fingers. The actual plastic cartridge supplied does not fit any of my pens but the metal part has an adapter which will fit any size of converter or cartridge so you can fill your own. A great gadget for the fountain pen enthusiast. I love it and will use it often. It even gets the last drop of ink out of those Goulet sample bottles cleanly and efficiently. Highly recommended.

It's not perfect but does the job, however the spring mechanism sticks and doesn't always fully extend as its is designed to do and it needs a little work to unstick the problematic spring mechanism. still it's a convenient tool to add to My fountain pen collection I'm sure it'll make use someday somehow. Thank You

Handy thing. Because the tips is not sharp, do not worry about that can damage the cartridge for ink. Due to the springs can not be fooled injected. The work when let go. Wash easily

The size doesn't suit my pen, but it serves to fill the cartridges already used. It's going very well and I didn't have to contact the seller

Excellent product, very fast delivered in combined shipping, it is for the faithful pens-tank A accessory valuable. Very good seller, bravo