Please feel free to contact us via email if you have any questions about the products. Tips: to get a better effect, please use the recycling tray for dipping powder. And ensure all the bottles are cleaned up properly and the caps are tightened well after use. No uv/led lamp needed and easy to apply: doesn't need nail lamp to cure, easy enough for a starter to do the job and keeps for more than 2 weeks. 8 seleted colors: more than 50 color combos can be designed with this set. Professional acrylic nail system includes all you need: 4 glues, 8*7g color powder and 1 recycling tray.