Pirelli is bringing the following compounds to the 2019 Brazilian Grand Prix (November 15-17).
Just three colours at each race in 2019, with five different compounds available: C1 is the hardest, C5 is the softest.
Each driver must have both race sets available for the grand prix.
Teams are free to choose the remaining 10 sets, making 13 sets in total for the weekend.
Selections for long-haul events have to be made 14 weeks in advance; for European races the deadline is 8 weeks in advance.