Hauser is no longer making the Hauser bill 707 SF rollerball refill. Please order Schmidt 888 refills which are compatible.
The Hauser bill 707 SF was a great refill and was sold for many years, but is no longer available. Hauser makes several models as well that will be replacing the 707, including the Hauser H4004 Rollerball Refill. The official name is the Hauser Open TC 777F, which we are planning to carry. But, until then, please use the Schmidt Safety Ceramic Roller 888 F or the Schmidt Safety Ceramic Roller 5888 rollerball refills as compatible replacements.
Mazurka Pens
Questions? Contact me (William) at sales@mazurkapens.com