Poly Mailers 14 x 17″ - 50/250/500pcs

【Durable Material & Lightweight Portable】 Reliable Mailer 14x17" 500pcs poly mailers bags are able to stretch 3 times longer than usual. These mailers bags will well protect your product. Only 2lbs per pack, thin but sturdy. Lightweight to carry and save your freight cost. 【Premium Material & Widely in Use】Made of durable materials, our envelops mailers will not burst even by tearing and pulling aggressively. A self-seal strip is easy to stick. It usually applies to your business, office, individual store and express carry facility, and so on. Save your time and make your work effective when you're busy packing a mass of products. 【Waterproof & Tear-proof Designed】This postal bag is composed of a waterproof body and self-seal strip. The special material surface can make the label firmly stick on the packaging and waterproof. The sticky self-seal tape saves your time and makes your work effective when you're busy packing a mass of products.NOTE：The bags is mechanical cu