There are limits of size and weight for the suitcases, both the hand and the ones that will be dispatched. On domestic flights, hand luggage may not exceed 115 cm (considering height + length + width) and the maximum weight is 5 kg. Already the luggage to be dispatched respects the size of the aircraft and the class in which the passenger is traveling:
30 kg for first class, on aircraft above 31 seats;
23 kg for the other classes, on aircraft above 31 seats;
18 kg for aircraft with 21 to 30 seats;
10 kg for aircraft up to 20 seats.
For your safety, the suitcases must be padlocked and identified by name and address.
Hand luggage may not contain sharp or sharp objects. Items such as nail scissors and pocket knives, for example, can only be carried in checked baggage.