this is a great, super durable, simple, clean, juicy, swaggy pen body that takes a ton of refill types. no nonsense. PLEASE check it out but you have to import it from Japan via ebay for like $18 which is still cheap for a nice pen. I fill it with Pentel Energel 0.5 mm refills, the best pen refill god ever made. Smooth, not too sharp but still precise, doesn't smudge...