This is a four-piece mini set of OPI Nail Lacquer, each bottle in OPI's standard mini fill size, letting you try a small collection of shades without committing to full-size bottles of each. OPI's Nail Lacquer formula is designed to deliver a smooth, glossy, chip-resistant finish, with wear of up to seven days when used with OPI's complete three-step system (base coat, two coats of color, top coat) -- using the lacquer alone, without the full system, will generally wear faster.
The brush is OPI's Pro-Wide design, built for full nail coverage in fewer strokes. OPI's mainline lacquers are formulated without animal-derived ingredients, though it's worth noting OPI is not a fully cruelty-free brand company-wide.