Alright, if you use those handy Shachihata name pens and need to replace just the stamp part, this is exactly what you're looking for! This is ONLY the imprinted stamp section - not the whole pen assembly, so make sure you've got the main barrel already. The stamp has a finished 'Ota' marking in Ikebo style with a 0.4 inch diameter (9mm) and uses vermilion ink that's crisp and clear. It's important to know this isn't a custom order type - the marking is already set, so it's perfect if you need that specific name or if you're replacing an existing stamp. The penetration stamp design works with the dedicated XLR-GP refill ink cartridges when the ink eventually runs out (though these last quite a while). I keep a couple of these on hand for office use since people are always misplacing their name pens. The installation is simple - just pop out the old stamp and click this one in. Just remember - this isn't for official seals or legal documents, it's specifically for name pen use. If you're running through a lot of paperwork that needs quick signing or initialing, having spare stamp parts means you're never stuck waiting for a replacement. The quality matches the original Shachihata standards, so you're not getting some cheap knockoff that'll smear or fail quickly. Definitely a smart buy for offices, classrooms, or anyone who relies on these convenient stamp pens daily!