Keep your A3-sized shipments safe and professional with our Self-Sealing Book Wrap Mailers (450 x 330 x 60mm, Pack of 15). Each mailer is crafted from durable, recyclable corrugated cardboard to ensure your books, documents, or artwork arrive in perfect condition. The peel-and-seal adhesive strip makes packing fast and simple, while the easy-tear opening gives your customers a frustration-free unboxing experience. These mailers are A3 compatible, ideal for online sellers, offices, and environmentally conscious businesses seeking eco-friendly, high-quality postal packaging. A3 Compatible Size: Each wrap fits A3 documents, books, and artwork (up to 450 x 330 x 60mm) — perfect for eCommerce and postal shipments. Self-Sealing Strip: Peel-and-seal adhesive closure for quick, tape-free packing — saves time and effort. Easy-Open Design: Built-in tear strip allows customers to open packages neatly and easily without damaging contents. Eco-Friendly & Durable: Made from 100% recyclable corrugated cardboard for strong, sustainable, and protective shipping.