Delivery fee is calculated by combined shipping.
Combined shipping is where you purchase two or more items with one seller and get a discount on the shipping rates.
If item A is $4.50 to ship and item B is $6.00 to ship, it would be $10.50 for shipping without combined shipping.
The calculation for shipping in this website follows:
Every item has two attributes: Per shipment fee and Per item fee
If you order multiple products, the "Per shipment fee" is selected from the largest one, then other products are just charged with "Per item fee"
For example, you order three products:
Per shipment fee: $18
Per item fee: $2
Per shipment fee: $12
Per item fee: $1.5
Per shipment fee: $5
Per item fee: $1
The total shipping fee is: $18 + $1.5 + $1 = $20.5
The following is a default shipping fee table. Different products may have different shipping fee, you can check every product for details.
|Shipping to||Per shipment fee||Per item fee|