It is a set of LDS cat eye gel polish shades with a pearly finish, listed as LDS Pearl CE followed by a number, such as Pearl CE 02, 08, 13 or 24. Each shade is a magnetic gel: the shimmer particles move toward a magnet while the gel is still wet, which creates a soft band of light across the nail.
Apply a thin first coat and cure it about 30 seconds. Apply a second coat and, while it is still wet, hold the magnet at about 45 degrees and 1 to 2 mm above the nail for 5 to 10 seconds. Cure about 60 seconds, then finish with a top coat. A magnet is required for the effect.
Cat eye shades read differently over different colors. A dark base makes the band of light stand out more, while a light or nude base gives a softer, more natural look. Swatch the shade over the base you plan to use before a full set, because the same bottle can look quite different on each color.
The most common causes are a gel layer that is too thick, a magnet held too far from the nail or for too short a time, or waiting too long before using the magnet so the gel starts to set. Keep the coat thin, hold the magnet 1 to 2 mm from the nail, keep it steady, and cure right after the effect forms.
Stock changes by shade. This page shows the Pearl CE numbers currently listed, and some numbers may be sold out at a given time. Open each listing to check availability before you plan a full color wall, and pair the shades with a magnet and a top coat if you do not stock them already. Ordering by the Pearl CE number keeps reorders simple and avoids mix-ups between similar shades.