Step 1: Find Out What Sells It’s not a secret to find out what sells online (Amazon, ebay, wish…). If you find these two 20 pcs nail art set kit sold well on Amazon: 20pcs Set Nail Art Brushes Tool Kit on Amazon Classic color nail art kits on Amazon pink colorful nail art brush set kit with colorful zipper pouch Pink colorful nail art kits on Amazon After you’re sure to go with this product, go to next step to revise. Step 2: Revise You may think of revising it by changing color, parts, and package… … have something NEW like this: pink colorful nail art brush set kit pink colorful tools 20: with pink colorful nail…