The 6×9 bubble mailers outer size is 6×10 inch,while the inner size is 6×9 inch.bubble envelopes 6×10 are great for packing invoices, photos, trading card,sports card, passport,office supplies,jewelry,lips,cosmetic,small handicrafts,small fashion accessories, key chain,phone cases and more. Bulk Pack: Get 100 pcs black poly bubble mailers, perfect for shipping and packaging small to medium-sized items Durable Construction: Made with waterproof outer layer and bubble cushioning to protect contents during transit Convenient Design: Self-seal adhesive strip for easy closure, no taping required Multipurpose: Suitable for mailing, shipping, packaging, storage, and organization needs Size: Each mailer measures 6 inches x 10 inches, ideal for small products or documents