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Strip-tear Rigid Stay Flat Mailer Cardboard Back Manila Mailing Envelopes Do Not Bend C3 A4 A5 A6 C5 C6

| US standard size | Inner size cm | |||
| Item No. | Wide | Lengh | Flap | PCS/CTN |
| JB-1 | 13 | 13 | 4 | 200 |
| JB-2 | 15.2 | 15.2 | 4 | 200 |
| JB-3 | 15.2 | 20.3 | 4 | 100 |
| JB-4 | 16.2 | 15.2 | 4 | 200 |
| JB-5 | 17.8 | 22.9 | 4 | 100 |
| JB-6 | 22.9 | 29.2 | 4 | 100 |
| JB-7 | 24.8 | 31.1 | 4 | 100 |
| JB-8 | 27.9 | 34.3 | 4 | 100 |
| JB-9 | 32.4 | 38.1 | 4 | 100 |
| JB-10 | 33 | 45.7 | 4 | 100 |
| JB-11 | 43.2 | 53.3 | 4 | 100 |

| Item | stay flat mailers |
| Description | Gray board paper & kraft linerboard |
| Material | Fully made from recycled pure cardboard paper |
| Advantage | Biodegradable & recyclable |
| Surface | Easily accepts inks, stamps and lables |
| Printing | Custom printing ;accept multiple-color printing on one product |
| Peel & seal | Self-seal, Strong Hot Melt Adhesive |
| Strong seam | 1/2″ fins on 2 sides or 3 sides |
| Thickness | Customer's Damands |
| Main Features | Perfect Printing/Tamper-evident/Strong Adhesive/Eco-friendly/ Anti-static/secure package |
| Application | Mailing, Packing, Small Parcel, Post Office, Stationary |
| Delivery | 10-15 working days |