You will need:
1. Basecoat
2. White polish
3. Neon pink, yellow, blue, purple, and red polishes
4. A thin striper brush
5. Top coat
Steps:-
1. Apply two layers of basecoat using white color polish.
2. Paint a very thin line of bright pink polish along the tip of your nail as shown in picture.
3. Paint a thin line of yellow along the tip of your ring finger.
4. Continue painting different colored lines on the tips of the remaining three nails as shown in pictures.
5. Skipping the ring finger, use the color that matches the French tips of each nail to draw two more thin lines across each nail.
6. Paint thin lines of each of the colors you used on your ring finger to create a rainbow nail, See in pictures. You are done.