What is Bubble mailers? They look like a traditional yellow or manila envelope on the outside, but are lined with bubble wrap on the inside for extra protection. Bubble mailers are a necessity if you do a lot of mailing and shipping. Advantages: Economicalt & Convenien: Each poly bubble mailer contains a strong self-sealing adhesive strip. Simply peel and fold over to seal each package safely and securely. Poly bubble mailers are a cost-effective and efficient way to ship all your packages. Perfect for business and retail use. These bubble mailers are convenient, lightweight, and will help to save on shipping costs. Eliminate the need for costly shipping boxes and tape by using poly bubble mailers instead - and watch the savings add up! Durability & Sturdiness: These mailers are tear-resistant, puncture-proof,which exceptionally protect your packages.Reassured mail products, supplies, gifts and more from your online shop or home based business. Good Raw Materials, Good Quality Packing Advantage Application Full Bubble,Shockproofand Fall Proof The outer layer of pearlescent film,full layer of bubbles, shock-proof andfall-proof products are more safe. Wider Border Seals Make Them Stronger Widened side wide design, bubblebag sealing items more secure.New Pe Rawmaterial New environmental protection, non-toxicand harmless raw materials,shockproof,pressure-proof and moisture-proof. Self-Adhesive Sealing Design Adopt high temperature hot meltadhesive, strong viscosity, tear ready to use.