The ePacket delivery shipping service has a few restrictions as far as how much it can weigh and what the maximum value of the package can be. To ship with the ePacket service, the package cannot exceed a weight of 4.4 pounds - or 2 kg - and the contents of the ePacket must not be over the value of $400.
The destination country for your ePacket will also have some restrictions regarding the dimensions and valuation of your package, so it is important to check before sending an ePacket. For instance, although your parcel could be less than the maximum valuation allowed for ePackets, it could be more than the accepted value of the destination country regarding import. In this case, you may be liable to pay import tax on the shipment.