Take the guesswork out of breaking down and rolling your favorite herbs. Banana Bros OTTO uses AI to sense the density, moisture level, texture, and consistency of your herb. OTTO uses that data to adjust the pressure, speed and direction needed to mill your herbs to perfection. OTTO ensures that the maximum amount of surface area is exposed, creating a cleaner burn that delivers maximum potency. Banana Bros premium cones are created from 100% natural and high quality raw unbleached fiber that's GMO-free, chlorine free and vegan-friendly. Don't use the cones? No problem. OTTO can still be used with your favorite smoking preference, making it easy to take it easy.