ui->categorComboBox->addItem("0 - 20 km/h",20);
ui->categorComboBox->addItem("0 - 40 km/h");
ui->categorComboBox->addItem("0 - 100 km/h");
ui->categorComboBox->addItem("0 - 20 km/h",20);
ui->categorComboBox->addItem("0 - 40 km/h");
ui->categorComboBox->addItem("0 - 100 km/h");