Until 2019 shipping small parts would always be cheapest by post.
Starting 2020 this is no longer the case, especially outside the EU.
Handling & shipping max. 2 kgs EU, package (by post)
This price is an estimate
Shipping (within the EU) and handling of packages longer than 38 cm (about 1'3") weighing up to 2 kgs.
Shipping by post, insured up to EU 50.--, if delivery time is less important than price.