Postsack (Postbeutel, Kurierbeutel)

mail bag (postal bag, messenger bag) Feature: 1.The mailing bags used very widely in express company like EMS, Fedex, UPS, TNT, DHL...... 2. material:special material, coextrusion film of PE, white outside and black inside,thickness:0.07mm; 3. size: W31 * (L41 + 5)cm; 4:description:self-adhesive tape closure; 5:printing:four colors printing; 6: ECO-friendly, nontoxic and safe,passed SGS test, green products; 7. user-defined material, thickness, design, style, size , colours and logo are acceptable