celloexpress SELF INDICATING 1g Pack of 500 Total Gel Weight 500g YELLOW Silica Pouches Sachets (SI 1g, 500)

The silica gel is contained in a clear plastic bag. It has many microscopic holes to let the moisture slowly through. The silica gel then will indicate that moisture is present. The yellow beads will change to an green colour PLEASE NOTE . These are silica gel and not dessicant clay. Silica gel is a desiccant - it adsorbs and holds water vapour The gels come packed in air tight bags for a long shelf life Printed on each sachet :- DESSICANT SILICA Do not eat