PACKAGE INCLUDE:20 chrome powders with 1 color gel,1 top coat and 1 base coat for using with these powders PRODUCT FEATURES:Easy to apply through correct use,super fine powder,10-35um,Can be applied on different background colors(even without color gel),black/white base are most commonly used. What do we need to prepare before we can use it:1.UV/LED lamp.2.A small brush. Usage:1.Apply base coat and cure.2.Apply a color gel and cure.3.Apply the top coat and cure to half dry.4.Apply the powder.5.Apply the top coat and cure. For Base Coat:The Nail Base Coat is not as dry as Top coat after cured,keep base coat tacky after cure,this will help the color coat stay on your nail longer.This isn't defective formula,this is how it's worked.