The diffuser consists of two parts - the body and the lid. While the latter consists of a solid, fugitive plastic of the body is treated with a plastic emollient. This is the body especially at the beginning quite strong odor, you should give him some time to airing. To attach the diffuser it is advisable to first fumble the body to the hot, what you absolutely have to help from the inside something with her hand. Only then should you close the lid. Overall, a bit annoying, it holds the diffuser after quite well on the flash (some cheap diffusers have indeed exactly where their problems). Furthermore, you can tuck it through the soft body relatively limited space in the camera bag. As you might expect meets the diffuser its function, here there is not much to complain about.
For fumbling and smell there were 2 points deduction, but the price and the space required is again very ok - overall I forgive here 4 points.