Mailing Bags Blue Self Seal Envelopes 250mm x 350mm 10" 14" Pack of 20

MULTIPURPOSE AND VERSATILE — These reliable plastic mailing bags are built for everyday dispatching, packing, and posting. Whether you're shipping orders as a small or large business, sending clothes sold on Vinted, or simply need dependable parcel bags for regular use, these mailing bags are perfect every time. TAMPER & WATERPROOF — Manufactured from thick polythene, co-extruded with a black inner layer for added privacy, confidentiality & superior tear-resistance. These postal bags create a tough barrier against moisture, dirt, and rough handling. Unlike paper envelopes or jiffy bags, these flexible plastic postage bags won't split or soak through — keeping your items fully protected regardless of weather or handling conditions. SIZE & DIMENSIONS - 10" x 14" + 2" / 250mm x 350mm + 50mm (Width x Length + Flap) - Available in a range of sizes, these plastic mailing bags are designed to accommodate all shapes and sizes depending on the size chosen. Each size features a proportionally sized peel-and-seal flap, ensuring a clean, secure bond regardless of how full the bag is packed. STRONG & SECURE SELF-SEAL STRIP — Easy peel and seal closure for fast, secure posting — Say goodbye to excessive packing tape with the built-in self-adhesive strip on every bag. The strong self-seal closure bonds firmly on contact, ensuring your parcel cannot be opened without being visibly cut, this tamper-evident closure gives you complete peace of mind from packing to delivery. COLOURFUL & COST-EFFECTIVE — Choose from the eye-catching colours to style your fulfilment, reinforce your brand, or simply make your packages stand out. Available in bulk value multipacks, these plastic postal bags are an everyday essential for Vinted sellers, eBay traders, small & large business owners, and anyone in need of dependable, affordable delivery bags for parcels of all kinds.