I wonder if the refills for 0.5 would fit in the barrel of the 0.7 ones I purchased already.

I haven’t had any luck with trying to interchange the 0.7 and the 0.5

How do you put the refill cartridges into the pens?

The portion of the pen that is under the silicon grip unscrews. Many of the pen are overtightened. You may need to push the silicon grip out of the way to get a good hold on the bottom of the pen to unscrew. After replacing the cartridge, try not to return the pen to the overtightened state.

If they are made in Mexico, watch out! The barrel cracks and renders the pen unusable. There is a difference.

Are these needle point?

I bought the.7 and they are needle point. Looking at the picture of these, I believe they are as well. The metal tip looks different. Either way, you should be pleased with the pens. I have several colors in a variety of needle point and metal tip and they all write well. The gel ink dries quickly and looks great on the paper. I switched to the EnerGel from another brand of gel pen a year ago when my daughter was visiting and had one of the purple pens. I prefer the .7 as it's not as fine as the .5 but, if you like really fine writing, the.5 would probably be the one you want. I definitely recommend these pens.

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EnerGel Deluxe RTX Liquid Gel Ink Pen Set Kit, Pack of 3 with 4 Refills (Violet - 0.5mm)

Product ID: 16312750

Details

Age Range (Description)
Kid Teen Adult
Brand
Pentel
Color
Violet
Ink Color
Purple
Writing Instrument Form
Roller Ball

💜Vibrant violet gel ink for standout notes

♻️Refillable design with 4 extra refills

🖊️0.5mm extra-fine tip for precision

¥4850

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Description

💼 Write Boldly, Lead Brilliantly.

ENDLESS CREATIVITY - Includes 3 pens plus 4 refills—never run out of your signature violet ink.
COMFORT MEETS STYLE - Ergonomic round barrel with a snap closure designed for all-day writing comfort and easy portability.
TRUSTED BY THOUSANDS - Join nearly 2,000 users who rate this pen 4.8 stars for reliability and smooth performance.
VIBRANT VIOLET VIBES - Make your notes pop with rich, water-based gel ink that dries quickly and resists smudging.
PRECISION IN EVERY STROKE - Ultra-smooth 0.5mm needle tip delivers crisp, clean lines for professional writing.

The Pentel EnerGel Deluxe RTX Liquid Gel Ink Pen Set features three refillable pens with ultra-fine 0.5mm violet gel ink tips, delivering smooth, vibrant writing ideal for professionals and creatives alike. With four additional refills included, this set ensures long-lasting use and consistent performance, backed by a 4.8-star rating from nearly 2,000 users.

Specifications

ASIN	B00LPMGUQ0
Additional Features	Gel ink
Age Range Description	Kid, Teen, Adult
Best Sellers Rank	#40,900 in Office Products ( See Top 100 in Office Products ) #877 in Gel Ink Pens
Body Shape	Round
Brand Name	Pentel
Closure Type	Snap
Color	Violet
Customer Reviews	4.8 4.8 out of 5 stars (1,959)
Drill Point	Extra Fine
Grip Type	Basic Grip
Hand Orientation	Left
Included Components	3 Pentel EnerGel Pens, 4 Pen Refills
Ink Base	Water
Ink Color	Purple
Item Dimensions	6 x 3 x 0.5 inches
Item Weight	22.68 g
Line Size	0.5 millimeters
Manufacturer	Pentel
Material Type	Plastic
Model Name	petenl
Model Number	PENBL7
Recommended Uses For Product	Writing
Style	Refillable
UPC	725122995118
Unit Count	1 Count
Writing Instrument Form	Roller Ball Pen
Writing Technique	gel ink

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¥4850

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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Received my product in pristine condition. Great service overall.

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