Baoer 3035 Rollerball Refill

[mke]

Does anybody know which kind of rollerball refills Baoer uses?

I like how they write - but I don't want to buy a new rollerball every time it is empty.

The long photo is a comparison of the Baoer refill with a Schmidt refill, same in one of the small photos. The corroded refill (maker unknown) looks similar but doesn't fit.

Any idea?

Thanks

 

[Mech-for-i]

Ok that looks to me like what the Chinese Mfr refer to as G5 form factor , a spec usually reserved for rollerball but since see many Gel refills .. you can get them quite readily available