Clear Desiccant Canisters are a small, (2-1/4" x 2-1/4" x 3/4") louvered transparent plastic canister packed with 48 grams (1.6 oz.) of a blue indicating silica gel bead. The desiccant material within the canister attracts moisture from the surrounding air and holds it safely within the container. What makes this plastic canister unique is that it can be regenerated in a microwave oven in just a minute or two. Our plastic desiccant canisters are packaged two canisters per pack. The price you see below contains two canisters per pack.