Downforce Series

Gouriki Kensetsu offers the Downforce Series, a ball‑point pen that uses a pressurised ink refill to maintain consistent flow regardless of writing angle or pressure. The refill is released by a spring‑reinforced clip, preventing accidental marks when the pen is stored. The product is manufactured in Tokyo, Japan and is supplied in packs of ten or one hundred units. The design enables clear, sharp lines even when writing upside down.

The ball size is 0.7 mm, providing fine line quality, and the barrel is typically made from aluminium alloy for lightweight durability. Ink is a liquid type that remains stable under pressure, and each refill holds roughly 0.8 ml of ink, a common capacity for pressurised pens. The series is available in four colours - black, red, blue and green - with the colour being determined by the ink cartridge. Typical overall length is 140 mm and the pen weighs about 20 g, making it easy to handle for extended writing sessions.

Professional writers, engineers and office users who require reliable line quality in varied positions choose this series. The supplier lists a unit price of $4.04 for ten‑piece packs and $0.60 per refill for larger orders, though exact pricing must be confirmed. Shipping terms are negotiable and can include FOB or CIF from the Tokyo port. Buyers should verify the packaging details and any required compliance documentation before finalising a purchase.

Gouriki Kensetsu is based in Tokyo, Japan, with its address listed as Tokyo 134008. The company holds a harbor trust tier, but its response rate is recorded as 0 % and no average response time is provided in the listing.

The business focuses on writing instruments and offers the Downforce Series with pressurised ink technology. The listing does not disclose production capacity, years in operation, or specific certifications, and only mentions the basic product features and packaging options.