My , apparently low quality, carbon seatpost for folding bike from AliExpress broke. My other folding bike , a tern verge X20, had this very good lightweight aluminium seatpost, so I decided to buy one for my day-to-day folding bike too. Unfortunately no shop in The Netherlands sold one, but I could order one online at the Tern webshop. It arrived fairly quickly. Sturdy , lightweight and looks very well crafted. Expensive but worth it and it feels more sturdy than the broken carbon one. Added benefit that it doesn't slowly slowly slides down like carbon does. Very happy with it.
The seatpost looks very good, unfortunately without a plug at the end of the tube. Arrived in Germany within a week, with customs and clearance by FedEx to add.