Specification: 1 meter in length and 4 cm in width

Nail polish production steps:
1. Apply a thin layer of primer to create a base. This prevents pigmentation and enhances the adhesion between nails and nail polish
2. After the base layer is dry, apply the coloured nail polish. Black is the optimal colour for creating a starry sky effect
3. Viscosity should be determined personally; the ideal state is slightly dry to touch, but with a slight viscosity
4. Place the sticker on the nail surface with the desired colour in the desired position. The effect size varies depending on your method.
Note: Avoid using bright oil as it affects the sticker's appearance. Allow additional drying time after applying oil.