Strip-tear Rigid Stay Flat Mailer Cardboard Back Manila Mailing Envelopes Do Not Bend C3 A4 A5 A6 C5 C6
- Mailing Envelopes: Protect valuable art prints, photos, CDs, books, certificates, and important documents this set of 50 mailing envelopes; use stamps, labels, and colorful ink to personalize the self seal envelopes
- Self-Adhesive Seal: The white mailing envelopes have an adhesive strip at the top to ensure contents are secure during transit, simply peel and seal!
- Reliable Quality: Our paperboard mail envelopes reduce the cost of shipping without sacrificing safety; the tear strip tab at the top allows for quick and convenient opening
- The Perfect Size: Each mail envelope measures 17 x 21 inches; perfectly sized for gift cards, posters, and calendars
Quick Details
- Color:
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Brown
- Material:
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cardboard
- Place of Origin:
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China
- Brand Name:
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ecoMailer
- Model Number:
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cardboard mailer envelopes
- Product name:
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Kraft Mailing Bag Craft Cardboard Shipping Paper Envelopes
- Feature:
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Recyclable, Compostable
- Printing:
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Customized Printing cardboard mailer envelopes
- Usage:
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Delivery Service Package,business envelope,gift envelope,kraft envelope
- Thickness:
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250g,300g,350g,400g,450g...
- Closure:
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Strong Adhesive, Peel & Seal, Self seal, Hot Melt Glue
- Size:
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A4 A5 A6 C2 C4 DL or customized
- MOQ:
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20000
- Sample:
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free sample with freight collected
- Application:
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Express Service Packaging

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 |