Kraft paper outside with strong 3/16" bubble lining inside.
1.Light weight--weights less than most other brands but still performs better.
2.Superior cushioning and surface protection.
3.Extra tough bubble inside protects contents from damage during delivery
4.Finned sides&bottom--easy in/easy out for your product
5.Self-sealing, peel and seal closure---just load, peel off strip and fold over to close. Tear and puncture resistance.
6.quakeproof, push-proof and moistureproof.
Application: Be used to post tape, CD, camera lens, film, certificate, IC card, mini-type machine accessory and so on that need protecting.