Its a readymade icing you just need to whisk it with a spoon and use it in the piping bag.
For making it flood consistency, add water. For making it stiff consistency add sieved icing sugar.
Gel and paste concentrate colours are suitable for this icing.
After opening the seal, keep it in the refrigerator.It will stiffen up after taking out, leave it on the counter for sometime..it will come back to its normal consistency.
It has a quick drying time But if in high humidity areas, you can place any 3d pieces under a yellow lamp to expedite the drying process.