Great Shaker, also suitable for the very young!

I compared many Shaker until I decided to Nino-Eggs. I was looking for a pleasant sounding and durable rattle instrument for my son. In retrospect, I was told by a fellow teacher that these are also used in primary school in music lessons.
The Nino-Eggs sound very pleasant, let themselves from very young children and babies (as of 6 months, when the hands are big enough) hold all right, and they are extremely resistant, so that they can sometimes flying through space without equal broken to go.