The Copic Air Adaptor is an incredibly useful tool for experienced and novice airbrush users alike! With it, you can transform your Copic Sketch markers into airbrushing tools that allow you to easily experiment with different colours and techniques. However, if the adaptor gets too cold, it can cause the colours to become inconsistent, so it's important to let it warm up if use it for more than 90 seconds. The Air Adaptor is specifically designed for use with the Copic Air Grip, sold separately, and works with both Copic Sketch and Classic markers, sold separately. Plus, it meets ASTM D-4236 safety standards, so you can be sure it's a reliable and safe tool.