Positives: delivery has occurred within a few days, in a practical storage box. The description for customizing is attached in German, worked out well at the second attempt and the gel pad can be heated several times for this. Caution, however, that you can not bites on the first attempt to determine, otherwise the gel is by and can no longer even return forms. But what is me massively disrupts that the lower part is incredibly clunky, as if someone had stuck a block between the pines. I can not even close his mouth properly, the upper lip is really far ahead and is certainly gotten ..... apart from the fact that the mouth is not approaching runs the slobber and swallowing I have with the block in a good hit during sparring mouth right gagging. Have finally decided on a different model, the "applying" less