Works beautifully! I tested them out with this color blocked soap and they were perfect. The spacer for the middle is very helpful as well!

They r messy for me and so much soap sticks to then it a waste and have to take the time it wipe it down back in to the mold

I really like these dividers. I've used both 3 color and 4 color to get a Taiwan Swirl. Works perfectly. I found that you do have to press down on the dividers while you pour, but it hasn't been a problem for me.
Thanks Nurture!

I purchased these dividers for a very special bar of soap I was making. It worked out great and allowed me to make a beautiful Taiwan Swirl. I do suggest applying pressure down on top of the dividers as you pour so the batter doesn't seep under the dividers. This is not a flaw in the dividers but just the nature of this technique. I especially like the spacer to keep the dividers evenally spaced while pouring. Well made and would definitely recommend!

These dividers are perfect. They fit very well.