Bantex cool frost document wallet made from durable polypropylene. Locking device ensures documents stay securely in place. Expands to 1 Inch for bulky materials or remains flat for short reports, etc | Sturdy, transparent poly wallet with striped pattern that keeps from scratching | Expandable spine | Durable poly construction is wear-resistant and tear-resistant | Elastic closure keeps contents secure | Gusseted sides expand to hold up to 200 sheets