I like seeing interesting widgets in foriegn countries.

However I couldn't help but be piqued by the use of the word "retractor". The device or tool picutured in English is called a clamp, usually used for light clamping purposes such as holding some paper to some kind of backing material, or light sheet metal being held up onto a board while it is being painted. Specifically, the tool pictured is being used a prying tool, using the lips of the clamp to wedge the two case halves apart. A better tool is a metal spudger or putty knife.

Now a retractor can be many things: such as someone who goes someplace to retrieve something, or a tool used to grab something that fell someplace, like an automotive tech who dropped a bolt or nut down a chassis rail.