POLYPROPYLENE BAGS: SILVER AGE - Though clearer than polyethylene and somewhat more stable, these bags can be somewhat brittle and may split at the seams if handled frequently. Polypropylene bags are a good bet for short term storage or if you are just bagging and storing. 100 virgin material. Approximately 2 - 2.4 mil. thick.
Polypropylene Bags: Silver Age Size (100)