Rolling helpers
If you are twitchy or your hands are shaking, it can be hard to build adequate cigarettes. That is why rolling helpers do exist. There are different kinds of rolling helpers, too; it can be a conical reusable filter like a Smokestick to roll papers around, a conical shaped joint tube for the transport like it can be found in some blunt packages, ready to use cigarette tubes or even rolling machines.
Regardless of what kind of rolling helper you prefer - here you can find your preferential helper.