One wonders indeed mostly back and forth when it comes to toys for young children, whether it is not just lying around again, and so I felt well. This Softwürfel but you can not go far wrong probably. My child got it with about 8 months, is indeed never hinterhergekrabbelt, but found him interesting, what they hear, for example, has very quickly stamped and associated with it. Personally, I find the cube pleasant compared to other toys with battery and noises (faced me usually gray) because the music and sounds but are still enjoyable and not so pushy and loud as others. But the die was not even thrown around all day, but only intermittently discovered from time to time, even now more than half a year later.
