I've got one (in red). The arms are stitched to the body, indeed. I hoped that the gloves are made socks-like (aka pantyhose on arms), but no, they are normal gloves with fingers. It's fun to use, however, with bound elbows it's very difficult to close the zip ;P
Anytime I buy off auction sites before buying I do a web search for the item in question for the best price.
Bought something like this about 5 years ago.
On eBay, japanese device to help girls to keep their neck straight.
Worked well in keeping your head in place and neck in place.
And the one I bought was better than the one displayed.