Product Overview Part of OPI’s Roughles collection, Nicole by OPI On What Grounds 15ml matte nail lacquer is fantastic for statement textured nails which are sure to make an impression. Its gorgeous pastel blue combines with tiny blue & brown flecks for candy-coloured style. Almost good enough to eat! With its formaldehyde-, DBP- & toluene- free formula this lacquer is kind on nails, & features an exclusive OPI Perfect Stroke brush for a flawless finish every time.