【Heart Printed Design 】Our 8.5x12 bubble mailers feature a popular design that makes the items you transport more conspicuous and will not be easily lost. The beautiful pattern can also make your customers happy and enhance your brand influence..【Perfect Size 】These 8.5x12 bubble envelopes are the perfect size for transporting a variety of items, including clothes, books, makeup supplies, and more. With an outer size of 8.5x12 inches and an inner size of 8.5x11 inches..【Convenient & Economical 】Each heart bubble mailer contains a strong self-sealing adhesive strip. Simply peel and fold over to seal each package safely and securely. Bubble packaging envelopes are convenient, lightweight, and will help to save money on shipping. Perfect for businesses, online sellers, and boutiques..【Sturdy & Durable】 Our 8.5x12 padded envelopes have excellent protection with 360°strong air bubble technology and the air bubble weighs 85g. Our cushioning padded mailers are waterproof, tear-resistant, puncture resistant, and can provide superior cushioning and all-around protection for your package during transit..【Make a Lasting Impression】Using our padded shipping envelopes are a great way to build your brand image. You can customize your mailers with your own stamps or stickers. Let our padded mailing envelopes help you to build your business and make your brand stand out in the market.