Description
Product details
Overview & Design Brand: Classmate (ITC) Pen Type: Gel ink pen, 0.5–0.7 mm tip depending on the variant Body & Grip: Lightweight plastic barrel with a sculpted design and textured rubber grip—ergonomic for long writing sessions Cap: Click-off safety cap Pocket Clip: Yes, convenient for carrying around Ink Performance Ink Color: Vivid blue Japanese Waterproof Gel Ink: Offers smooth and fast writing with smudge- and water-resistance—ideal for exams and class notes Smudge‑Proof & Quick‑Drying: Keeps writing crisp even if accidentally wet User Experience Smoothness & Comfort: Highly praised for gliding effortlessly across the page; reliable for long-duration writing Student Favorite: Commonly used for exams, notes, and assignments due to its dependable performance Real user voices from Reddit: “Same….! Me as well. I cannot use another brand of Gel Pen. It’s Octane or nothing.” “Pens are very good quality, writing is very good and smooth… I really like these pens.” Refillability & Durability Refillable: Designed for refill use, though some users report variable refill quality Reliability: Many loyal users keep the same pen body for years, swapping refills as needed Pros & Cons Pros Smooth, reliable writing with a pleasant grip Waterproof & smudge-resistant ink—great for exams or left-handed users Lightweight and ergonomic Cons Refill quality can be inconsistent—some users report skipping or incomplete impressions Ink may deplete quickly in heavy use Summary The Classmate Octane Blue Gel Pen is a go-to gel pen for students and professionals who want smooth, waterproof writing at an affordable price. With ergonomic design and dependable performance, it shines for exams and note-taking. If you're considering a refillable pen, Octane is a strong contender—but be prepared that refill quality might vary.


![Overview & Features
Smooth gel ink: Delivers clean, consistent lines with minimal skipping, smudging, or bleeding, thanks to a 0.6 mm fine tip .
Comfortable body: Lightweight plastic barrel with ergonomic grip/sturdy clip enhances handling .
Matte finish & style: Sleek matte-looking body gives a premium feel .
Good value: Widely sold in multi-packs (10, 50 pens etc.) offering excellent price per pen .
Refillable (some variants): Certain retractable/ jumbo models are reportedly refillable .
User Feedback (from Reddit)
Smooth writing:
“I love Hauser XO, it is super smooth.”
Popular & reliable:
Grip critique: Some users find grip uncomfortable:
“That protruding circle on the outerside of the cone tip actually hurts my finger if used for a long time.”
“Hauser XO is best… HAUSER XO ANY fucking DAY [ball point ya gel variant dono best hai]”
Final Take
The Hauser XO gel pen is celebrated for its super-smooth gel ink, sleek matte barrel, and unbeatable value-for-money, especially in multi-packs. It’s a great option for everyday writing, journaling, or school work. However, if you write for extended periods, consider testing it first—some users report grip discomfort or light ink tone.](https://productimages.withfloats.com/tile/68737ea4903e7d3c17c35031.png)
