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The Jinhao ink cartridges that we sell at Skilltoyz.com fit all Jinhao fountain pens. But inserting the cartridges can be tricky and deserves an explanation. The end of the ink cartridge has a plastic … read more

A customer emailed me to say he had a faulty yo-yo bearing. The bearing had been working ok but after a time became slow and would not spin very well: his bearing had broken! However, bearings rarel … read more