Can be used for nail art and other crafts
Easy to use
Forms clear shapes that are easy to take out of the mold
Can be messy because the molds are very small.
I suggest that you use a toothpick to pick up the product you're using (acrylic/UV gel) and place it in the mold. Then, bounce the mold on a flat surface in order to fill up all the gaps in the mold. Also, you might want to keep some cotton swabs ready because you need to clean off any product that is not inside the mold before you cure it (or else this leads to a finished product that isn't clean-looking).