The card is inserted into a penny sleeve, and from there, it goes into a top loader. I then put the card into a team bag to prevent the card from slipping out. The card is then enclosed in a sheet of paper and put into a standard envelope. (See photos)
Note:
Cards surpassing the $20 mark are shipped in a bubble mailer, prepared as mentioned earlier. To ensure extra safeguarding, I insert the card between two cardboard layers.