Beads Dimension: 2.5-3mm(when it is dry) After wet: about 10mm Color: Blue Green White Yellow Red Clear Purple Orange Black Package included: 1 bag (about 100pcs ) x crystal soil If you buy 3 bags, we’ll send 4 bags to you.(1 multicolor as gift) If you buy 6 bags, we’ll send 8 bags to you.(2 multicolor as gift) …… And so on If you buy more, you will get surprised! Well notice: 1.Under 6years old kids playing water balls,it must be accompanied by the parents. 2.When you get the water balls,although it looks small,it will be gradually get bigger roundly after 6-8hours.