Good for coloring books
588097
I got these gel pens for my adult coloring books and thought they would be cute. They worked great but the colors are lighter and hard to see on a large picture. But I still love them and the pattern is adorable.
56427
I have been using these pens for coloring books, and I really like the brightness and colors. They don't leak through the pages, which I was worried about initially. The color variety is good - there are some more natural colors, and some more jewel-toned. I have spent time in art stores testing different art pens, and I think these are the best and worth the money.
4065927
I bought these pens for use with coloring books. I have used the pens several times now. Although some of the pens "color" better than others, I am very happy with my purchase. The glitter and metallic pens flow beautifully.
4861802
These are great colored pencils for coloring books, but probably wouldn't recommend them to a professional or more discerning casual artist. They write smoothly and have the classic hexagonal pencil shape, so they're easy to hold even at different angles. The color they leave on the paper isn't as rich as I would like but because it leaves a lighter coat they're great for shading. Very nice packaging and the tips are durable and resistant to breakage. Great product!
2884580
These work great when you are using a Adult coloring book to ease your stress, even if you are so stressed you try to bite them in two pieces.  Durable
2985231
I wanted colored pencils that would work for my coloring books - these are great!  I bought the separate pencil sharpener and it's a great set.
4704657
Using these for adult coloring. They work well, especially for just starting out. Colors blend well. And the points don't break easy. They lay color down nicely without having to press hard.
1505707
I purchased these for my parents.  They requested some adult coloring books and I picked these pencils for their use.  There is a good variety of colors in this set.  They are simple to use and last a long time.
1265227
My boyfriend and I love to color in our adult coloring books to unwind and relax. We mainly use gel pens for creating our wonderful works of art but sadly they get really expensive over time. It's nice to have an option to buy refills for the gel pens we already have.  colors get used more than others and you run out which is quite a bummer. These refill pens are very nice. They are filled more then some of our actual gel pens are which is great because they will last a little longer. They seem to write okay as well. They have little tips on them to avoid being dried out. Overall these are a decent set of refill pens.

I received this refill kit at a discounted price in exchange for my honest and unbiased review. Thank you.
2966265
Works great in adult coloring books. Doesn't bleed thru paper.
4762231
Beautiful colors, quite soft, break easily.  Good for coloring book work.  I would not use them on work to sell.
The Alvin 9866 Brass Bullet Sharpener works well with these.
190405
It's okay for a coloring book!  I have enjoyed it so far.  I'm not reading too much into it.
4187485
If you plan to use these for adult coloring book, think again. They indent the following pages.
1796290
Great! The kids use these for their coloring books, and I use them for grading papers in fun colors. Great purchase!
3423439
I got this for my 8 year old daughter along with a coloring book since she loves drawing. I don't have anything else to compare with, but so far it works good. They come in a wide variety of colors and don't break easily. It's really important because with young kids, sometimes they use excessive force while using it. But in my opinion, the colors are not vivid enough, hence the 4 stars.
4839271
These are great for coloring when making cards. Love the control you get using a pencil rather than a brush.
3892788
I use these pens for my coloring books for older people.  Very soothing for me and it helps to have a variety of colored pens.  The price was very good, and I rarely order anything if it doesn't ship free using my Amazon points.