**Specifications:**
**Brand:** Dian Shi
**Product Name:** DEEPSEA Submarine Cabin Series
**Description:** Explore the second station, the deep sea cabin series makes its debut, endless ocean mysteries full of charm, attracting us to continuously explore. Ride the deep sea cabin and dive into the azure wonderland.
**Design:** Submarine-shaped, dual ballpoint pen tips, ocean-inspired colors, detailed reproduction, smooth writing experience, rich and soothing. Quiet click mechanism, large capacity, anti-shake pen tip, anti-disturbance, durable and stable writing.
**Features:**
- Submarine Outlook: Realistic reproduction inspired by exploration submarines.
- Observation Periscope: Monitor underwater conditions at any time.
- Propeller at the Pen End: Assist in full-speed advancement.
- Command Center Tip: Navigate without getting lost.
**Color Options:** Deep Sea Dragon (Blue), Deep Sea Dragon (Green), Deep Sea Cabin (Blue), Deep Sea Dragon (Green)
**Ballpoint Pen Tip:** Smooth writing experience with dual ballpoint pen tips reducing friction for smoother writing.
**Quiet Click Mechanism:** Silent operation to avoid disturbing others in quiet environments like libraries, exam halls, and classrooms.
**Patented Structure:** Quiet click mechanism with Chinese invention patent ZL202011217099.2, suitable for libraries and exam venues.
**Large Capacity:** Durable and long-lasting with a large capacity ink cartridge (1156-Y) for extended use.
**Anti-Shake Pen Tip:** Stable writing experience with an internal pen core fixing component to prevent tip shaking.
**Packaging:** Each set includes 1 pen and 2 ink refills. DEEPSEA Submarine Cabin Series.
**Product Variants:** DS-3144E: Set of 4 pens and 6 ink refills.
*Note: The provided information is based on the product description for Dian Shi's DEEPSEA Submarine Cabin Series.*
