Netuno Pack of 100 White Envelopes DIN B4 with Cardboard Backing Made Grey 250 x 353 mm 400 g Large without Window

Strong and stable – Cardboard back envelopes are strong paper envelopes with a strong reinforcement made of 400 g/m² grey board on the back. SIZE – The format DIN A4 (210×297 mm) fits in a DIN C4 envelope (229×324 mm) and this in turn fits into a DIN B4 (250x353 mm) envelope. PERFECT PROTECTION - Cardboard backed envelopes are very good for sending documents that are not allowed to bend in transit. A reinforced cardboard backing protects your important documents from bending. VERSATILE USE - Cardboard backed mailing bags are highly recommended for sending documents, photos, documents, certificates, contracts, certificates, calendars, brochures, sheet music, samples or product samples. Technical data – 100 envelopes in DIN C4 format (229 x 324 mm), paper weight: 120 gr/m², cardboard backing: 450 gr/m²; envelopes without window, opening on the short side, straight flap, peel and seal with peel off strip.