ACA1015 IEC C7 to IEC C14 Molded Plug Adapter with UL and CE certifications. This Plug Adapter Allows You to Alter Your Electronic Device from 2 Prong to 3 Prong or 3 Prong to 2 Prong.

Adapter was just what I needed and worked great!

Nice tight fit and works as it should and as expected. Can’t really speak to the materials used but construction seems robust and sturdy. Because of the increased leverage on the devices socket incurred by increasing the overall length of the plug you should probably provide a support point to relieve stress at the device you are powering.