Shipping weights of Collectible Trading Cards, Baseball Cards, Hockey Cards, Magic Cards

1 Card in a Top Loader plastic case weighs just about 1 oz. 

Plus an additional ounce for a padded envelope. You can round up to 3oz just to be safe.

A Deck of Cards will weigh just under 4oz.

Average Shipping Weight of A VHS Tape

1 VHS Tape = 7.5 Ounces (Includes Cardboard Case). Don't forget to add 1 oz per padded envelope.