Named 30 colors Crackle nail polish in nail polish artSpecification: How To Apply:1.Apply ordinary nail polish after basecoat.2.After dry nail polish completely, apply a small amount of crack polish and let it dry naturally.3.Please do not double coat of crack colors after complete dry.4.Finish with applying top coat.5.Results are different according to way applying crack nail polish6.Thin layer or thick layer makes a difference.