在线侵权检测工具，可以尽量避免标题描述等文字侵权商标侵权问题，无需安装，绿色安全！ If silica is harmless to eat, though, why do the packets carry a warning? The answer is that some silica contains toxic additives. For example, silica gel beads may contain poisonous and potentially carcinogenic cobalt(II) chloride, which is added as a moisture indicator. and is also unlikely to be confused with a food item. If taken into the mouth it is unlikely that the child will swallow significant amounts due to the nature of the material. Based on the above investigations, if the powder is swallowed however , it is unlikely to form a mass that would cause intestinal blockage. SMALL ORBEEZ WATER BEADS. ORBEEZ Water Crystals Expanding Magic Balls 10mm to 13 mm beads. JUMBO ORBEEZ WATER BEADS. Beads will take appx 36-48 hours to fully grow and it is semi-dry JUMBO beads. (Will be slight wet as it is Semi-dry).