Advantages: Economicalt & Convenien: Each poly bubble mailer contains a strong self-sealing adhesive strip.  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! 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.