Reusable microperf bags are designed to keep produce fresh longer. They are especially effective with delicate greens like lettuce and kale and work very well with many types of veggies including cucumbers, broccoli, beans, and peppers. Wash and reuse them dozens of times. One-gallon bags are available in a 10-pack. Orders of microperf bags are limited to once every 6 months, as they are intended for reuse.