Volume: 18ml<br /><br />Professional Usage:<br />Step 1. Apply a thin layer of base coat， let it dry for 30-60 seconds(Not necessary， but with this step， it can last longer)<br />Step 2. Apply a thin layer of color coat， let it dry for 30-60 seconds<br />Step 3. Repeat step 2. This step is for some light colors<br />Step 4. Apply top coat. If you don't have top coat， apply clear coat can get same effect. Then let it dry for 30-60 seconds.<br /><br />Remove:<br />Easily remove with cotton soaked with acetone nail polish remover.