Perfect Size Black Bubble Mailer: The poly bubble mailers outer size is 6x10 inch, while the inner size is 6x9 inch. It is very suitable for transporting jewelry, makeup, cards, phone case, lips, photos, handcraft and more.Great for small business packing,shipping gifts cushioning mailer. | Value for Money: 100 Pack Padded shipping envelopes, every one 0.3oz, more lightweight and affordable, not require extra packaging material, which can improve your company productivity at work. | Sturdy & Durability: 6x10 bubble mailers are crafted with only the finest materials are waterproof ,cushioning ,tear-resistant, puncture-proof, they can keep your value stuff safely to destination even though using on foggy or rainy days. | Strong Adhesion & Self-Sealing: Our bubble shipping envelopes feature a four-season adhesive that maintains strong adhesion throughout the year and a reliable self-sealing closure to ensure your packages arrive safely at their destination. | Easy to Use & Efficient: Each poly bubble mailer contains a strong self-sealing adhesive strip. Just simply peel off and fold over to seal each package safely and securely. | Privacy Protection: The inner lining is using opaque film, even if there is strong light, the items in the padded mailers cannot be seen, which can protect your privacy well. | Make a Lasting Impression: Our black bubble envelopes are a great way to build your brand image. You can customize your padded mailers with your own stamps or stickers. Let our colorful padded envelope help you to build your business and your brand.