Your search for "cross ballpoint" revealed the following:
Pilot Refills Black - 2 Pack Fine Point Ballpoint Pen
$ 1.48Fits Camo The Better Ball Point Pen BetterGrip and EasyTouch
ST Dupont - Refills Fine Blue BP Refill
$ 11.00Threaded Blue Fine Ballpoint Refill Suitable for S.T. Dupont Fidelio, Orpheo (full size), D.Link and Classic ballpoint pens.
Caran D'ache Refills Frosty Black Fine Point Ballpoint Pen
$ 3.10Refill for Eco Collection Ballpoints.
Sheaffer Blue "T" Type Fine Point Ballpoint Pen Refill
$ 6.95Sheaffer standard (T type) ballpoint pen refill for the following ballpoint pens: Taranis Sagaris and Stylus.
Pelikan - Giant Red - Medium Point - Ballpoint Pen - Refills
$ 10.95Solid Stainless Steel Tip Pelikan Giant Refill 337 International Format Colors: Blue, Red, and Black
Montblanc Refills Mystery Black Ballpoint Pen
$ 4.50For Meisterstuck Hommage a W.A. Mozart Ballpoint Pens
Montblanc Refills Black Mini Ballpoint 3-Pack Ballpoint Pen
$ 12.503-Pack of Mini-Sized ballpoint pen refills to be fit for Meisterstuck Hommage a WA Mozart small ballpoint pens. Genuine Montblanc...
Montblanc Refills Pacific Blue Broad Point Ballpoint Pen
$ 11.50For all Montblanc Ballpoint Pens except Meisterstuck Hommage
Pilot Refills Black - 2 Pack Medium Point Ballpoint Pen
$ 1.54Refill fits the following retractable pens: Dr Grip ball point EasyTouch Better Retractable
Pilot Refills Black - 2 Pack Medium Point Ballpoint Pen
$ 1.48Fits Camo The Better Ball Point Pen BetterGrip and EasyTouch