Product name: Pilot Frixion Refill
Product type: pen refill
Color(s) Requested: black, blue, purple, red, green, pink, light blue, orange
Size(s) Requested: 0.5mm , 0.7mm
Available in US? no
Links/Other:
http://www.pilot.co.jp/products/pen/ballpen/gel_ink/refill_frixionball/index.html
http://www.cultpens.com/acatalog/Pilot_Frixion_Refills.html

It would be great to have these refills. :D