Tyvek Envelope B4 254x350mm 54g white 100 pieces

The Tyvek B4 envelopes 254x350mm 54g white 100 pieces offer optimal protection for your documents that require extra strength and security. Made from 100% pure PE fibers, these envelopes are both tear-resistant and water- and oil-resistant, making them ideal for sending confidential or bulky documents. With a weight of 54 g/m², they provide a perfect balance between lightness and durability. The envelopes feature a resealable adhesive closure, allowing you to send your mail easily and securely. Perfect for those who want their documents to arrive in perfect condition.Features: * Type: B4 format. * Dimensions: 254x350mm. * Weight: 54 g/m². * Color: white. * Packaging: 100 pieces. * Material: 100% pure PE fiber. * Properties: tear-resistant, waterproof, and oleophobic. * Closure: resealable adhesive strip.