(BOX OF 500) Sealed Air Shurtuff Quality 9" x 12" white self Seal White Poly Mailers with perforated lip for easy opening 100% Recycled Excellent Protection - Co-extruded multi-layer film construction for maximum tear and impact resistance Easy to Use - Smooth inner layer allows for quick, easy product insertion and provides complete opacity to assure security of contents Versatile - Outstanding water resistance protects contents from the elements. Improved tamper-resistant, self-seal closure saves labor and keeps contents secure Customer Satisfaction - Perforated strip facilitates easy opening Box of 500 To last you for a nice While