metronic 25pcs poly bubble mailers, 6x10 inch padded envelopes bulk #0, bubble lined wrap polymailer bags for shipping/ packaging/ mailing self seal -black metronic why choose us? we metronic is the professional manufacturer specializing in producing all sorts of packing material.such as bubble mailers, poly mailers, bubble wrap roll etc. our design group is a talented and experienced team,are a popular option among many businesses for shipping items. our mailers have a full bubble inside. it provides your package double safety protection and protect your privacy better. its cushioned wraps help ship your products to customers in a safe. specification: color: black size:usable size: 6x9"; total size: 6x10" qty: pack of 25 feature: waterproof,tear-proof,lightweight, tamperproof note : please note the size before purchase: our bubble mailers usable size is inches. when the length and width of your item reach just inches, and the thickness of your item exceeds 1 inch, please choose a larger size.