Choose your shades
259 gel polish shades at €17.99, plus 27 cat eye shades from €17.49. The discount is a percentage of the bottles you pick, so a mixed set prices correctly. Filters and colour families are Nailster's own product tags.
Finish the manicure
Nailster sell prep and finish in the same €17.99 bottle as the colour, so these count towards your set size. Each one you add makes every other bottle cheaper.
Anything else
Tools, lamps and nail art sit outside the bottle ladder and stay at list price. They do not change your rate, which is what keeps the offer explainable in one line.