1 Liter Volume of High Quality Fresh Blue Silica Gel Beads (Approximately 2 LBS) Silica gel turns blue to pink when completely absorbed by moisture. Silica gel beads size: about 2~4mm. Our blue beads only contain 0.005% Cobalt Chloride Blue pearls contain "cobalt chloride" which may pose a health hazard and environmental problems. Reusable by heating in an oven for 3.5 hours at 245°C/473°F.
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