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      "value": 6.5,
      "quote": "Considering the pen at about $33; might try a nicer pen later",
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      "value": 5.5,
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      "kind": "community",
      "value": 7.5,
      "quote": "Wants it as a daily user in fine nib; ease of cleaning is favorite part",
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      "date": "2015-07-22"
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      "value": 5,
      "quote": "Video relieved frustration prepping the pen for first use",
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      "date": "2026-05-03"
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    {
      "source": "YouTube comment on The Nibsmith",
      "kind": "community",
      "value": 7.5,
      "quote": "ECO seems a solid choice for the price; one of most affordable piston fillers",
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      "value": 4.5,
      "quote": "Had no idea how to fill it; included pictorial instructions poor",
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      "value": 6,
      "quote": "Just ordered first fountain pen; excited to receive it",
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      "kind": "community",
      "value": 8,
      "quote": "A good fountain pen on good paper is the most pleasurable note-taking means",
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      "quote": "Would recommend the TWSBI ECO over the Pilot Metropolitan",
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    },
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      "value": 7,
      "quote": "Makes writing a lot more enjoyable for me",
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      "value": 6.5,
      "quote": "Asks whether the TWSBI Eco is still a great first pen in 2025",
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      "date": "2025-06-30"
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      "kind": "community",
      "value": 6.5,
      "quote": "Uses TWSBI Eco for scribbling notes to build muscle memory",
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      "value": 5.5,
      "quote": "Instructions included with the pen aren't the best; sharing what I found",
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      "date": "2023-09-25"
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      "value": 4.5,
      "quote": "Piston came apart in pieces; video needed to reassemble",
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  ],
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    "cap cracked",
    "nib bent during reassembly",
    "piston assembly came apart during cleaning",
    "initial prep frustrating",
    "filling instructions unclear"
  ],
  "evidence_counts": {
    "videos": 5,
    "experts": 0,
    "owners": 1,
    "community": 15
  },
  "specs": {
    "Barrel Material": "Crystal clear acrylic",
    "Filling System": "Piston",
    "Nib Material": "Stainless steel",
    "Cap": "Clear with inner seal",
    "Trim": "Silver",
    "Included Accessories": "Wrench, silicone grease"
  },
  "features": [
    "Piston filling system enables quick and easy ink refills for uninterrupted writing",
    "Crystal clear acrylic barrel provides real-time ink level visibility for better control",
    "Clear cap with inner seal ensures a perfect, leak-proof storage",
    "Silver trim and stainless steel nib offer a premium writing experience",
    "Includes wrench and silicone grease for long-term pen care"
  ],
  "description": "The TWSBI ECO fountain pen boasts an incredible value with its piston filling system and affordable price. Like many other TWSBI fountain pens, it features a crystal clear acrylic barrel so you can see your ink level, and a clear cap. The pen cap has an inner cap to ensure a perfect seal when stored away. It is completed with silver trim and a silver stainless steel nib.\nTWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.",
  "researched_at": "2026-11-09T23:16:41.517+00:00",
  "delivered_price": {
    "how": "Ask for the price delivered to a ZIP: real shipping options from the store’s own cart plus estimated tax.",
    "api": "/api/v1/products/shopify%3A4R2paIdkQJYUzDuRnLHKIO/delivered?zip=43215",
    "mcp": "get_delivered_price"
  },
  "explainers": {
    "level": "some",
    "ladders": [],
    "terms": []
  }
}