Double Dragon 60 Mixed Size Self-Seal Mailer Bags | Tamper-Proof Plastic Packaging for Mailing, Postage, Shipping & Delivery | Grey (4 Sizes | Small to Large | 15 Each)

great value well made easy seal bags. Stick very well and good package protection. Good quality and plenty of sizes in the package

Perfect affordable bags. I use these for vinted and sending parcels. They are affordable and not cheap material. I have purchased bags multiple times. Sturdy and hold heavy items

I’m overall very happy with these Double Dragon self-seal mailer bags. The mixed-size pack is especially convenient—having four different sizes on hand makes it easy to choose the right bag for different items without wasting space or materials. The plastic feels thick and durable, and the tamper-proof self-seal is strong and secure, which gives peace of mind when shipping. The grey color looks professional and keeps the contents discreet. They’ve held up well during mailing and delivery with no tears or damage so far. The only minor downside is that once sealed, they’re definitely not reusable, and a couple of the bags took a bit of pressure to fully close. Overall, these are dependable, good-quality mailer bags that do exactly what they’re supposed to do. Great value for small businesses or frequent shippers—just a little room for improvement to make them perfect.

I bought the Double Dragon 100-Pack in 4 sizes (4x9, 9x12, 10x14) specifically for shipping items sold on Vinted, and they’ve been exactly what I needed. The size variety is the biggest plus—it makes it easy to choose the right envelope without wasting space or needing extra padding. The material feels durable enough for mailing clothing and small items, and the adhesive seals securely, which is important when sending orders through the post. I’ve used several packs so far, and they’ve held up well during shipping with no tearing or opening issues. Having multiple sizes in one pack is especially convenient if you sell different types of items. A simple, reliable packaging solution for online sellers. If you ship Vinted orders (or similar resale platforms), this pack is practical, good value, and does the job without issues.

Great bags for posting. Strong and good adhesive.

Not the best quality. Have ordered similar items before as I use to post Vinted items. Several have ripped before I've even come to seal these ones. They are much thinner than others I have bought. Probably worth spending a bit more for better quality. Good selection of sizes.

Great shipping bags. Used for mass vinted sales! A nice mix of sizes, something for everything.

These do what they say. Very good value for so many mailing bags. I sell on Vinted, so I use a lot of these. They're not particularly strong, but they do seal well without needing extra tape. The variety in size is useful. I don't use many of the small bags, but they would come in handy for small items. Would recommend for posting items like clothing, but not anything that needs extra padding or security.