Dri Aire Dehumidifier Interior Damp Trap Moisture Remover 6, 12 or 24pc Helps prevent damp, mould, and condensation. Absorbs 3x it's own weight. Absorbs up to 500ML. Crystals absorbs moisture. Traps moisture below. Once product has absorbed the full amount of water, (when all the granuels have turned to gel) place in a plastic bag and throw away carefully with normal household waste.
eBay