Have the disc dice for 2 days. Already have repeatedly located thereon. The dice do my back very well. I consider myself still a warm Körnerkissen at the lumbar spine and then feel very comfortable and relaxed. The cubes I put up in the hollow of the knee. He came quickly and well packed (fixed film) here. The transaction was very transparent. The cube smells not unpleasant. It has, as indicated in the description, not related. I knew it and it does not bother me, have a fitted sheet drum wrapped and everything is fine. Of course there are the dice related, but spend much more money I do not see. Above all, I wanted to test as a "device" once and for price and quality is super awesome. My physical therapist finds him super fine. Strong buy recommendation.