Pilot Hi-Tec-C Coleto Gel Ink Pen Refill 0.5mm, 5-Color Set of Black, Red, Blue, Green, Violet (Japan Import)

It’s great that I could find a pack in these colors, it matches the pack of zebra highlighters I had so it makes planning very easy to color coordinate. I use these with a 5 compartment Hi Tec C Coleto Pen holder, these are the inserts (refills) only. The ink is smooth and it’s a gel pen which is nice, colors as expected and I’m satisfied. I learned about the Hi Tec C Coleto line of products through JetPens, they have product demonstrations which are very helpful.

These are the colors a normally purchase over and over, again - so this was a good price for me. I bought 2 sets.

Ink ran out fast but I'm a teacher.

Love this ink! My favorite work pen and now I know I will never run out of ink- and don't have to waste any time running all the way into the city to the Japanese book store for this !

These are my go to everyday for my hobonichi writing. I am very pleased.

I love my hi tech c pen, and this is a great wick refill pack for it.

The ink writes beautifully and all, but it runs out way too quickly. One color only lasts about 6 pages worth of writing on a 5.5 inches x 8.25 inches journal page (or 3 pages of back-to-back writing). Disappointing! The best recourse for me, I believe, is to switch to using a fountain pen, where a bottle of ink (at about ~$10-$20) would last for about at least one year.

These work great for the Pilot Colleto. +5 stars for writing experience, -2 stars because they run out very quickly, and -1 star because they’re expensive for what you get. Overall 2 stars