With the launch of the second generation of Twist Press we are offering an upgrade pack to our current customers so they can use their current Twist Press with a finer grind of coffee. The new helix chamber comes with the addition of a silicone ring and the lower handle has a white mark to help with alignment. With this upgrade you can now open up your brewing even further and experiment with finer grind sizes. This upgrade does not include the upper section as this does not need to be replaced and will work with the new components.