Trash cover with elastic band works exactly like shower caps, but only for Trash Cans. - The TSB fits around the trash can and keeps foul odor from leaking trash bags. TSB is made from durable plastic material and typically lasts several months and designed for outdoor and indoor Trash Cans for both single family homes and townhomes with 32, 64-65 and 95-96 Gallon standard size and configuration. Each Package includes 4 rolls of the selected size.