Usually shipping rates provided by carriers need to be modified. The Shipping Rules extension makes it easy for merchants to increase or decrease standard rates tailoring shipping rules to suit your unique product set and customer base. Such actions provide store owners with accurate pricing and save customers from overpayment With the Magento Shipping Rules extension store administrators create custom shipping rules according to product type and define shipping rates based on destination, weight, price or quantity. Special shipping charges, surcharges or restrictions for certain items can be set via these rules as well. The Magento Shipping Rules extension helps modifying delivery prices both for individual items and for the whole order. This option can be used to surcharge orders containing specific products or to apply shipping price changes to individual items.