This product is a set of Livescribe ink cartridges, including 4 black medium point cartridges and 1 red fine point cartridge. The unit quantity is one, and the brand is Livescribe. The cartridges are compatible with Livescribe's Echo smartpen, allowing users to record and transcribe audio notes and sketches. The ink cartridges are ink-based and provide smooth, consistent ink flow for easy writing and drawing.
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