5-1000pcs Book Wrap Mailers Heavy Duty Corrugated Postal Boxes CD/A5/A5+/B5/A4
270 x 190 x 80mm (B5). 217 x 155 x 60mm (A5). 251 x 165 x 60mm (A5+). 302 x 215 x 80mm (A4). Designed with an adjustable depth, secure peel-and-seal closure, and tear-open strip, they ensure your products arrive safely and professionally.