Jaymo Replacement for Cross 8518-6 and Schmidt 635 - Measures 2.625 in / 67 mm Long - D (D1) Standard Multifunction Mini Ballpoint Pen Refill - 6 Blue - Walmart.com
4 Pack D1 Mini Format Ballpoint Pen Refills Medium Point - Etsy
Guide to D1 Refills | JetPens
Kaweco Soul D1 Ballpoint Pen Refill - 1.2 mm - Blue - Pack of 5 | JetPens
Amazon.com: Ballpoint Pen Metal Mini Refill D1/635 Refill- Medium Point Refill for Multifunction Pen,Mini Pen Compact Pen(Blue ink 8 pack) : Everything Else
Ohto R-4C5NP Needle-Point Ballpoint Pen Refill - D1 - 0.5 mm - Black | JetPens
Amazon.com: Cross Sentinel Micro Medium Ball Pen Refills - Blue : Everything Else
Amazon.com : Monteverde D1 Ballpoint Refill to Fit Mini and Multi Functional Pens, Medium Point, Soft Roll, 10 Per Pack (Bulk Packed) (Blue) : Office Products
Monteverde Soft Roll Ballpoint Pen Refill - D1 - 0.7 mm - Blue Black - Pack of 4 | JetPens
Schmidt Mine Refill D1 635 mini Swarovski Compatible Ballpoint Pen with END CAPS | eBay
8 X - Schmidt 635 Mini D1 Ball Pen Refill with Plastic Refill Holder, Blue 635963689926 | eBay
Schmidt 635 Mini D1 Ball Pen Refill - Blue - 10 Pack (Lamy M21 and Cross 8518-4 Compatible) - Walmart.com