Freshen for Trash Can Square 80*80*15 ×1 This is a dehumidifying and deodorizing agent made from diatomaceous earth, a highly absorbent natural material, charcoal, and recycled ash with high deodorizing power. Please use it in places where odors tend to accumulate, such as trash cans. ◯ Use by attaching it to the inside of the trash can with Velcro fasteners.