I have a DRP maker in Kolkata. A highly educated person. DRP valid only for 7-8 days. Anti iron, bubbles, Mr rr and dust. Remember he won't go anywhere. He will make it at his place. Any number of times washable till 7-8 days. If anybody wants can mail me. But remember that Validity is only 7-8 days. So you have to sell it within 7-8 days after making. It's only chemical made by a scientist. For other terms and conditions, please mail me at angelkol7779@gmail.com