Security:
Very important for such a product is security. I'm a certified technician for electrical engineering and inspect such a product therefore only times before I use it if it also meets the requirements and is safe.
I can not detect any defects in workmanship, the plastic cover is large enough to prevent accidental contact of the bush and yet the plug of the connected devices fit well into it. The fit is also very well connected to the connector does not wobble and has good contact.
The pins also do not protrude too far, they have only contact in the socket when touching the metal pins is excluded.
It's important in case of power Leading products that safety is ensured and no one buys junk. We liked the little plastic cap has me to protect the contacts during storage in the luggage, this is tight on the pins and keeps very well.
Would buy it again at any time.