Why is SQL not returning a single value to be returned as text? [on hold]

Why is this not returning a number? I am trying to take a the price from the column "NFF" of the "MFD" row and return it as the textbox text.

 private void button1_Click(object sender, EventArgs e)

    {
        string command = "SELECT NFF FROM dbo.Prices WHERE Item ='MFD'";

        try
        {
            SqlConnection SQLCON = new SqlConnection(Properties.Settings.Default.PricesConnectionString);
            SQLCON.Open();
            SqlCommand SQLCommand = new SqlCommand();
            SQLCommand.CommandType = CommandType.Text;

            SQLCommand.CommandText = command;
            Int32 price = (Int32)SQLCommand.ExecuteScalar();

            txtbox1.Text = price.ToString();
            return;

        }
        catch
        {

        }

example of my database:

Item    MAJOR   MINOR   NFF
RAD     199     250     300
MFD     300     555     66969