Review on Ceptics World Power Plug Adapter Travel Set - Safe Dual USB & USB-C 3.1A, 2 USA Outlets - Compact & Powerful - Use in Europe, Asia, Australia, Japan - Includes Type A, B, C, E/F, G, I SWadAPt Attachments by David Caldwell

As many have said, this is not a buck converter, just an adapter. the end caps are attached to the device (the end caps are attached to the back of the device with a slide mechanism that locks them in place). I personally don't like units that resemble the "Swiss Army Knife". This device has a more ergonomic and practical design compared to other products. I like that it has two power outlets and two USB ports, as well as a micro USB cable. It's also handy that two indicators show what voltage the device is detecting. Comes with a very practical carry bag. The manufacturer did a good job of presenting it, as the device is packed very well in a box with instructions. Highly recommended.