Made with environmentally friendly raw materials, 100% safe and non-toxic. safe to play, but not to eatThis colorful slime is a mixture of blue, gold and purple, it is soft, elastic, does not stick to hands, clothes, walls or carpets, very easy to cleanMakes children practice the coordination of hands, eyes and brain.Due to temperature effect, it may not be used. soak in warm water at 4°c before use.