Unopened, brand new Nanolash eyelash growth serum, 3mL (a 6 month supply). This is a daily use serum meant to make a huge improvement to the length of lashes, their thickness and strength. Full details, instructions, and FAQ are available at www.nanolash.com. I actually really love this serum, use it daily, and have seen a great increase in the length of my lashes since I started. However, I was gifted several tubes recently and now have more than I can use myself.