Using these bags is a breeze. First, simply open the drawstring at the top. You can then place your items like jewelry or candies inside the bag. Make sure not to overstuff the bag as the fillable size is 4' x 5.25'. For closing, gently pull the drawstrings together. When it comes to maintenance, keep these bags in a dry place to avoid any damage to the satin material. If they get dirty, you can use a soft, damp cloth to gently wipe them. Do not machine - wash or bleach these bags as it may ruin the shiny finish.