T30P Poly Sure Opaque Poly Mailers measure 700mm x 800mm providing plenty of room to fit a wide range of large items and protect them from weather damage. They’re made from high quality 45 micron polythene which is a fully recyclable and degradable material. The eco-friendly credentials are further enhanced by having all print, such as safety warnings, in water-based inks. With this waterproof, puncture resistant and tear resistant protection, returns due to damage in transit can be reduced and as they are lightweight they can lower your postal costs. Confidentiality and security is assured as the poly mailers include heat sealed edges, tamper evident seals and a high opacity finish.