The sushi rolling mat (or Makisu)
The sushi rolling mat can be very useful, although, with some experience you can do without it. The rolling mat is used to maintain even pressure from all sides of the sushi roll while rolling it.
When used to make an inside out roll, the mat needs to be wrapped in saran wrap in order to keep the rice from sticking to the mat. This may also be applied while making a classic roll to make the mat easier to clean during the process.
How do I pick a sushi rolling mat?