Triangular Tube - A3

Brown triangular postal boxes are a reliable and practical solution for safely sending long or rolled items. Supplied in convenient packs of 25, these sturdy boxes are made from durable corrugated cardboard to provide excellent protection in transit. Each box features a strong self-adhesive strip, allowing for quick and secure sealing without the need for additional tape. Designed for efficiency, they are easy to assemble and delivered flat-packed to save on storage space and reduce shipping costs. Ideal for mailing artwork, prints, plans, or posters, the triangular shape helps prevent rolling during transit while keeping contents well protected. A dependable choice for businesses and individuals looking for secure, professional postal packaging.