Schmidt Converter K5 For Fountain Pen

Bought it to be used with ferris wheel press fountain pen and it fits perfectly.

I bought this to replace the ones in my Jinhao x750 and x450; it fits with a little more push. Can guarantee it works for both pens.

Good quality converter. Stated capacity is .7mL. I used in my Pelikan Pelikano Jr., it's a perfect fit. Just wish it were cheaper here, as on JetPens and other sites it's 5USD.