Manila Brown 400gsm Peel & Seal Rigid Board Mailers Envelope (328 x 458mm)

Protect your shipments with our 328x458 mm manila rigid board mailers, crafted from 400gsm card for a durable, eco-friendly solution. Featuring a peel and seal flap and red rip strip for easy opening, these heavyweight mailers are perfect for books, electronics, and premium items. Available in 280gsm and 300gsm options. Contact our team for Custom Printing options for these rigid board mailers.