I am pleasantly surprised at the quality and finish of these cubes. They are very bright colors, and above all ... living in apartments with antique parquet: they do not make noise when falling and are thus avoid - at least on these cubes - the neighborhood problems. After that, I do not know how long they will last as for washing the label says they are washed with water, by hand (no drum spin, no dryer, no etc ...). But as they are not expensive, I do not SENTS injured me.