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Pentel Refill Ink for EnerGel RTX Retractable Gel Pen, 12 Pack, 0.7mm, Medium Point, Navy Blue (LR7-CA)

(10 customer reviews)


Brand Pentel
Ink Color Blue
Style Metal
Item Dimensions LxWxH 0.25 x 0.25 x 4.37 inches
Point Type Medium

  • High performance ink technology combines the best qualities of liquid and gel ink for a super-smooth writing experience
  • Liquid gel ink dries so fast even left handed writers love it – no smears, no smudges, no globs
  • Ener-gel ink writes more smoothly than the leading brand (internally tested to be smoother writing than the leading gel pen on standard writing paper)
  • 0, 7mm metal tip writes medium lines; 1, 0mm metal tip writes bold lines

Pentel Co. , LTD. Is a privately held Japanese company which produces stationery products. The Name is a combination of the English words pen and tell. Pentel is also the inventor of non-permanent marker technology.

Important information

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Dimensions 0.25 × 4.37 in


Item Weight

‎1.47 ounces

Product Dimensions ‏

‎0.25 x 0.25 x 4.37 inches

Item model number ‏



‎Navy Blue



Material Type


Number Of Items



‎1 Count (Pack of 12)

Point Type


Ink Color


Manufacturer Part Number




Date First Available ‏

March 25, 2017

Manufacturer ‏


10 reviews for Pentel Refill Ink for EnerGel RTX Retractable Gel Pen, 12 Pack, 0.7mm, Medium Point, Navy Blue (LR7-CA)

  1. Mrapunzel

    I love these refills, and this pricing is outstanding. However, I made a mistake – when I placed my order for violet/purple refills, and got my order the first time, I saw the red packaging and assumed they sent the wrong item, and ordered a replacement. What I SHOULD have done was open one of the refill packages and give it a try, because I would have quickly realized these are EXACTLY what I ordered, just in different packaging than I expected. They are labeled “violet” correctly as well. My violet/purple refills came in red packaging, but the inside is correct and is the violet/purple – so try your pen refills, first! I ended up paying for my replacement (my fault!! Not the shipper’s or amazon’s!) so I ended up with lots of nice purple ink. I highly recommend these refills, they are an awesome value and fit my Pentel Energel alloy pens nicely. Less plastic is a great thing, and I’m happy to be using my metal barrel pens and using these refills; not a perfect solution as the refills are plastic, but it’s less than using a plastic pen barrel and compounding it….

  2. Reader

    These pen refills arrived as pictured and the cartridges are in individual, clear wrappers. I’ve only used one, but it works great and fits in the pen just fine.That said, the color is so confusing! On the box, the swatch of color looks pinkish-purple but it is not! The color *name* on the box, “Lilac,” is correct. Identifying the color names is confusing.I ordered the wrong color first, so I hope this helps someone else avoid my mistake. In Energel pens, Violet is a light, pinkish purple, like the three-pack in my attached photo. The Lilac is a blueish purple, the single pen in the photo. Energel pens are gorgeous color!When ordering in the future, I plan to rely on the *name* and not what the picture looks like. Also, there is a light green, called spring green, that I don’t care for as much as the regular ‘green.’ The Energel packaging does not always list the names of the colors on the package. Overall, though, I’m glad to have this problem with so many beautiful colors, they glide on the paper.

  3. Gabby Tess

    The Pentel EnerGel RTX Retractable Liquid Gel Pen refills have become my writing saviors. They are not only amazing for the planet but also for my wallet, making them the perfect companions for my favorite pen.The performance of these refills is nothing short of exceptional. The smooth and vibrant ink effortlessly flows onto the page, providing a flawless writing experience. Whether I’m taking notes, journaling, or sketching, these refills never disappoint, consistently delivering high-quality results.What sets these refills apart is their eco-friendliness. By choosing these refills, I contribute to reducing plastic waste, making a positive impact on the environment. It’s a small change that aligns with my commitment to sustainability, and it feels great to know that I’m doing my part.Additionally, these refills offer fantastic value for money. They extend the lifespan of my Pentel EnerGel RTX pen, allowing me to continue using my favorite writing instrument without having to invest in a new one. It’s a cost-effective solution that keeps both my writing and my budget on point.If you’re a fan of the Pentel EnerGel RTX pen, these refills are an absolute must-have. Their superb performance, eco-friendly nature, and wallet-friendly advantages make them the perfect choice. Embrace the convenience, sustainability, and cost-effectiveness of these refills and enjoy an uninterrupted and guilt-free writing experience.

  4. Mikki

    I absolutely love this brand of pens. I use them so much, I wanted to try refills. They are long lasting and the colors stand out. Easy to refill once you make a separate purchase of this brand of pen that is more so metal. 10/10, I will continue to purchase.

  5. Ryan Cooper

    This is my absolute favorite pen, I prefer extra fine point and they are very difficult to find in regular brick and mortar stores. This is a great economical option.

  6. Olivia Steele

    Decided to try these instead of keep buying pens and they actually seem to last longer and I use my pen everyday at work. Have to use blue ink at work so it’s hard to find a nice pen with blue ink.

  7. Mechanical Engineer

    These pen refills are easy to use – they just screw in. The writing experience is very good. It is nice to not have to throw a whole pen away. I’ve been using them for many years.

  8. Mar

    Note that they are in fact a tiny bit shorter than the Pilot G2 refills. Plus the needle point on these is a bit smaller than the ballpoint on the G2 refills. That means that you can’t easily put this refills into a pen that takes the G2 refills without doing some mild modifications.There’s enough space in the back to lop off some excess plastic to get it to fit into pens that take the Parker type refills, but that’s only if the pen body is thick enough for it.I like that these write just as smooth as the Coleto 0.3mm pens, except they hold tons more ink and last way longer. I only wish there were more options for pen bodies.The packaging arrived a little squished, but otherwise all of the refills are intact and the couple I’ve used so far work just fine.

  9. Miguel Ángel

    Escritura muy fluida.
    La tinta se seca rápido (no he tenido problemas siendo zurdo, pero si eres de los que pasan la mano por la misma línea en la que están escribiendo puedes tener problemas de borrones) y dura 2/3 de lo que dura un pilot de gel normal y corriente. El trazo es más ancho que la contraparte de pilot de 0.7 mm y, en mi opinión, lo único que los hace inferiores a los pilot es el armazón del bolígrafo que contiene el cartucho de tinta, que es menos ergonómico y de bastante peor calidad que el de pilot, además el mecanismo de según que modelos hace que se vaya escuchando una pieza de plástico moverse al escribir, lo que lo hace inconveniente en ambientes silenciosos.Una solución es coger el armazón de un boli pilot g2 ó parecido y recortarle de 1 a 1,5 mm de la parte final del cartucho de tinta de pentel, ya que tienen una longitud parecida y el mismo ancho, y usar el cartucho de pentel en un boli pilot.

  10. Alberto

    Muy bien
    A tiempo buen producto

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