This product comes in a plastic container filled with beads that absorb twice their weight in water. It comes with our without charcoal. You remove the lid and the seal and leave the white film underneath. Replace the lid and place the container wherever you want to remove moisture. I use this product in my closets, the laundry room and even under my desk to make sure all those cables stay dry. It is perfect for small spaces like drawers, cabinets and storage rooms. It is amazing how much moisture these things can absorb. The best part is that you can find this product at Dollar Tree for only $1.00. I have seen similar products at other store and they cost around $4.00. This one works just as well and you can't beat the price.