These Fuxury bubble mailers are absolutely perfect for small businesses and anyone who ships products regularly! You get 40 packs of sturdy black bubble mailers measuring 10.5x16 inches (outer dimensions) with 10.5x15 inch inner space. The construction is seriously durable - made from tear-resistant, puncture-proof polyethylene material that can handle rough handling during shipping. Even on rainy or foggy days, your items stay protected thanks to the waterproof design. The bubble lining features 80gsm bubbles with unique air cellular layers that provide excellent cushioning and shock absorption. Each mailer has a strong self-sealing adhesive strip - just peel and fold over to seal, no reinforcement tape needed! The adhesive maintains strong stickiness year-round regardless of temperature changes. At only 0.84 ounces each, these mailers are lightweight to keep shipping costs down. Perfect for shipping clothing, books, magazines, photo frames, calendars, and various small products. The black color looks professional and provides privacy for your shipments. You can even customize them with your own stickers or branding to build your business image. Whether you're running an Etsy shop, eBay store, or just need reliable shipping supplies for occasional packages, this 40-pack gives you great value and peace of mind. Your customers will appreciate receiving items in professional, well-protected packaging that shows you care about quality.