As I wrote in the title, it was out of the box so some problems raise for the first time on the walimex the diffuser. The diffuser is made of the material cycle (analogous to a softbox diffuser), which is framed by a border of fabric (no elastic). The diameter of the part is so closely sized to just walks around the dish. With the help of a few studio clamps I could initially more than annoying permanent slipping stop end and pull the diffuser over the edge of the softbox. I think over time the substance is still give something that will facilitate the re-raising.