As a book blogger I often mail signed paperbacks out as giveaways. These padded mailers are perfectly sized and sturdy for this purpose. I've never had anyone comment that their book arrived damaged when using them.
The Quick Sitrip Bubble Wrap Cushioned Mailers 8.1/2" x 11" are practicaly the best sizes Mailers very easy closing is a very strong sealer and also the Mailers are very well sealed on the sides and never had an issue with this mailers of opening and loosing the items inside. Our customers they appreciate very much for us ussing this type of mailers when we sent their items on the mail. We have never received a complaint about a damaged item sent. We also use the same mailers on the larger sizes. Very very good product.
Great as intended for CDs or DVD-Rs. But also serves well for other small items that fit. I sell a lot of small items online and I have used these for pins pocket books and note pads to many different items to list all. I would recommend that if you are using prepaid postage put on the mailer before stuffing it. It works easier that way with less chance of breaking a bubble which can happen. A bit pricey at Staples rather than bulk from other sources but if you only need a few mailers this is the way to go.