Note: The more liquid you apply, the more obvious the thermal color-changing effect is. Need to apply black or dark base color to achieve the thermal color-changing effect. Package Contents: 1 Box 2g UR SUGAR Thermochromic Liquid Specification: Brand: UR SUGAR Capacity: 2g Color: As the pictures show Feature: 100% new retail and high quality. Easy to apply, quick-drying. It has a beautiful reaction to the temperature. It can be applied on the entire nail bed or used to draw patterns as desired. Let it air dry for about 2-5 minutes after application depending on the amount of liquid you apply. The color changes at high temperatures between 60F-90F and no color-changing effect will occur at low temperatures. The color is blue at high temperatures and begins to change when the temperatures drop. The whole color-changing process takes about the 90s. HOW TO USE: 1) 1. File and clean nail surface. 2. Apply base coat, cure it. 3. Apply a layer of black or dark color gel, cure it. 4. Apply a layer of Thermochromic Liquid, and wait for it dry for 2-5 minutes. 5. Apply top coat, cure it. 6. Pick one nail plate, stamp the image on your nail 7. Apply top coat, cure it. 2) 1. File and clean nail surface. 2. Apply base coat, cure it. 3. Apply a layer of black or dark color gel, cure it. 4. Use Thermochromic Liquid to draw pattern, and wait for it dry for 2-5 minutes. 5. Apply top coat, cure it.