I have got heavy parts shipped to me in Europe from USA. USPS has lowest price. Fedex, DHL, UPS charge more than double.
But some US sellers use the higher priced USPS services for tripple price.
USPS means local postal service that take over at the border. Some countries local service might not be safe.
I bought an expensive home cinema processor shipped in a box marked KRELL on all sides from Florida. Happy it was shipped by Fedex all the way which means transport to my door by Fedex and avoid the local Swedish/ Danish Postal service that might not be the safe solution for obvious expensive contents.
My engine parts from Mike in boxes not looking expensive, only heavy
Mike, I was sure the earth is round
Terry must know!