"Kettle cord" plug cover

"Kettle cord" (230v) plug cover that fits seamlessly the plug. Useful when you want to leave a cable connected to the mains, but you want to protect the plug from external elements (water, staples, etc...).
This cover fits the IEC 60320 C13-C17 plugs, those commonly seen on PC power supplies, printers, etc.

Printing advice:
one wall is very thin, print with material and settings that can grant good adhesion between layers.