Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good Quality Mailer, Could Use a Smidge More Bubble Wrap

I bought these mailers to ship copies of my novel to buyers. They fit the book well, which is 8 x 5.2 x 0.9 inches, with just a little room to spare. The self-adhesive is great, and they're easy to write on with a sharpie.The bubble wrap liner is good, but for my books, I wish it was a little thicker. What I've done is wrap the books in one piece of bubble wrap, and then they feel pretty secure. Depending on what you're shipping, you might want an extra layer of protection (though these are certainly better than a simple paper mailer).