It refers to the luggage transported in the hold of the aircraft, which you must deliver before taking your flight in the documentation bays of the airline you are traveling on, so you will not have access to it during the flight.
Although the weight of checked baggage ranges between 20 and 32 kg, the dimensions and specific weight are allowed depending on each airline and the contracted rate. It is also important to consider the times to document: 2 hours before the departure of the flight for domestic trips and 3 hours before the departure of the flight for international trips.
Although more items are allowed in checked baggage than in carry-on baggage, many are restricted, so we encourage you to check the details with the airline you've selected for your trip.
Additionally, we recommend that you do not include valuable items, money, documents, and vital medications in this baggage.