REMINDER: It will need to be cured under a LED Dryer Lamp. Please read the Instruction or Products Description for more details. Only used for nail and Non-direct contact with the skin. Wash immediately if contact occurs. If you feel unwell, instantly stop using and seek medical attention. (PLEASE NOTE: We strive to make our digital color swatches as accurate as possible to the actual product color but due to different monitor settings and electronic devices colors may differ slightly.). Speed Curing with UV/LED Nail Lamp: The color changing uv gel polish set need to be cured under LED/UV light. Base and Top coat required. Average for UV/LED light 60-120 secs. Easy Application and Good Tenacity: The crystal balls gel nail polish set is long lasting for 21+ days with perfect shine under proper application - With base gel top coat under the full application Process. Please read the Products Description for more details.This item is UV gel. It is still sticky after curing. It must be used with a base coat and top coat! This item does not include base&top coat, which needs to be purchased separately. Environmental & Healthy: The 6pcs color changing gel nail polish are made from 9 Toxin Free Ingredient which makes it safe and has low odor. No harsh ingredients or adhesives that lead to damaged nails. This gorgeous color gel nail polish changing set is modern, trendy and futuristic with a touch of glitter. Crystal balls are used to bring harmonious, calming energy and this set will provide calming energy to your nails!.Color Number is: a995-a996-a997-a998-a999-a1000.