International Express billing heavy weight and weight to take the two heavy. The following example is the volume and weight calculation method provided by the International Logistics Mall.
Volume re-calculation method: long * wide * high CM / 5000,
21KGS the following small goods less than 0.5KGS by 0.5KGS dollars,
21KGS above the large cargo less than 1KGS by 1KGS dollars.
Volume measurement to the longest point on each side of the box calculation, less than 1CM calculated by 1CM.
UPS Express is a single piece of billing heavy cumulative, and a single piece of less than 0.5KG by 0.5KGS count, less than 1kg by 1kg count.
Goods over a certain size of the courier will have a different surcharge or rejection.