Talk:Demonstrator pen
Add topicLatest comment: 5 years ago by 158.174.226.112 in topic TWSBI
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TWSBI
[edit]Among popular modern demonstrator pens, the Taiwanese maker TWSBI, and the models "Eco" and "580" are often mentioned. In particular the TWSBI 580 has made a substantial impact as a go-to demonstrator pen. 158.174.226.112 (talk) 04:02, 30 April 2021 (UTC)