a) White nail paint for the base.
b) Nail paints of different colors (blue/red/green etc).
c) Manicure tape.
d) Top coat.
add Steps to follow:-
1. Apply white paint on all the nails which will act as a base.
2. Let the paint dry well for five minutes, then put manicure tape on the nails as directed in the picture.
3. Paint the portion above the manicure tape with another nail paint of different color.
4. Remove the manicure tape carefully.
5. Create a wave with the same color of the balloon as shown in the picture.
6. Do the finishing by applying a top coat over the nail and you are ready to flaunt your beautiful nails.