It is an erasable gel pen by Pilot, and it is marvelous. You can mark on fabric, then press it, and the mark goes away.

However, there is one word of warning: If you put the fabric in the freezer, the marks reappear. So, to me it's just a little scary.

What if I make someone a quilt and it's freezing cold in their bedroom? Will the marks reappear then?

Oh, that is interesting... wonder what cold water would do to it then, in the wash and you want to hang the quilt to dry?

I'm still skeptical. i bought some but haven't used them yet. perhaps on a wall quilt.

I just washed out the pen markings that came back after I froze the fabric swatch. The next step will be to let it dry out and see if it comes back when I freeze it again. This is interesting.

Thank you for testing this for us :D I will be watching to see what happens next :D:D:D

Definitely interested to hear what happens. Rather you test it and find out and save me the money. Thanks. LOL

Take a piece of fabric and mark it. Put it in a cold bedroom and see if it will come back.

It will be interesting to know if it will.

It did not come back the second time.

Our bedrooms are not that cold in Mississippi.

I'm going to do some more testing.

Thanks for testing these....

Where do you find them?

I looked at Walmart and didn't find them. Walgreen's did.

There are two pens in a package. It is by Pilot. The package has on it -- New Ink Technology -- Writes Smooth, Erases Clean -- Ball Frixion Erasable Gel Pen.

A vendor in Houston was selling them individually for $4.00.

Another test:

I marked on the piece of fabric quite a bit. Then I rinsed it out and gently scrubbed the marks off. Let it air dry. Put it in the freezer. No marks on it now.

I would test each fabric before I used it in a quilt.

I'm going to get some of these for other stuff I do.

Thank you for checking this pen out. I have it on my list, but won't get any until I hear what your test shows.

Thanks.I looked in Joanns, but wasn't sure, so didn't buy.

We got to test one out at our quilting friendship group last night. Hot iron makes it disappear. There are several colors. I'll be trying it on some scrap fabric before I put it on a real quilt. But this could revolutionize marking quilts for quilting!!

Wow... I am glad that I read this thread. I had not heard of these before but I am intrigued!

I tried it. Wrote on several fabrics, let it set overnight. Ironed it the next day and it disappeared. I think I read somewhere on this board that it had to be really cold (like freezing 32)for the marks to come back.

Ok, dumb newbie here but why would you put your fabric in the freezer?

dumb oldie wondering the same :-)

Someone responded on an earlier post on this subject to the freezing issue. She is a long arm quilter. If she ships a quilt back to a customer, it may be subjected to freezing temps en route.

Don't know of any other way it might freeze. And my understanding is that you would need to iron again to get it to disappear. Wonder if washing removes it permanently? Or maybe just a hit of steam from your iron?

I wouldn't use one of these on a check, though!

Funny!

I went to a show and saw a Dmo on this pen and fortunatly the person in front of me bought the last one they had. The next day I bought one from a office store and read the directions which said to make it reappear just put it in the freezer at 15 degrees and it will reappear. So I experimented on a swatch.
When I put it in the freezer it only took a couple minutes to reappear. So I thought What if I put it in the Refrigerator at about 40 degrees. It took about 5 minutes and it started to reapear.
I don't think I want to risk it on a quilt because I take my quilts places to show them off and it might be cold outside or I leave it in the car overnight and they would reappear. Also down the road if I were to give one of my Quilts to someone and this happens how are they to know how to fix it?

Did you read my earlier post that said I washed it out, air dried it, put it in the freezer, and it did not reappear?

I found these pens at Staples Office Supply. They have online as well. Going to test myself about coming back due to the temperature. Think if it is washed that it was prevent it coming back. Will try.