Temperature Change Nail Glue Gradient Phototherapy Nail Polish Glue ToolFeature: It changes color when it meets water or the temperature decreases, and it changes color at constant temperature Instructions:Remove the grease on the nail surface and apply the primer to the lampshade for 60 secondsApply a thin layer of colored nail polish. Cover the free edge. Light for Sixty secondsRepeat the second thin layer of nail polish on the nails. Light for Sixty secondsApply top coat. Cover the free edge. The light shines for Sixty seconds.Use a cleanser to remove sticky residue from your nails. Then, use nourishing cuticle oil to re-enter the moisture into the cuticle and the skin around the nails.The color can keep the gloss for up to 30 days, the hot stamping color is optional, suitable for all occasionsKeep sealed: Avoid direct sunlight. Please keep this product out of reach of children.Net content: 10mlWeight: 8g Package Content: 1 x Temperature Change Nail Glue