JetPens®.com - Love at First Write®
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Average Customer Review
 5.0 (1 customer reviews)
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October 26, 2008
This refill is usable...
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This refill is usable in UMN-207 Micro, UMN-152, UMN-105, or UMN-138. I tried it in an UMN-138 pen body from Jet Pens and it writes smoothly. A friend complimented on my writing while I was using it, and I pointed out it is not me but the ink quality that is responsible.

tyleraspect