The Kraft Bubble Mailer Padded 4x7 Envelopes is a superb product that is deserving of a 5-star rating. I purchased this for it's size, durability, and weight. The weight of each enevelope is about 3/8 of an ounce. It is perfect for my home-internet business. The interior walls of the envelope are lined with a layer of bubble wrap that keeps my product secure for mailing. The lip of the envelope has an adhesive strip for sealing. I have searched the internet and could not find a similar product in a quantity of 50 at this price. I highly recommend this product for mailing anything that needs a little padding.
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