120 Ct. 6X9 WHITE POLY MAILERS ENVELOPES SHIPPING BAGS 6 x 9 Ultra Lightweight, saves on shipping Surface accepts pen, marker, stamps and labels Enhanced security, silver lining, no way to see contents Three-layer co-extruded polyethylene film: Moisture resistant, puncture resistant, tear resistant Self-adhesive, tamper-evident closure with poly-release liner,easy-to-use; secure closure