C4 Plain Manilla Self Seal Envelopes 324 x 229mm 18" Single Wall Postal Mailing Cardboard

Single Wall Postal Mailing Cardboard Boxes are designed to meet Royal Mail's 'large letter' size restrictions

this product is widely used by Amazon

available in clear and black

are premium-quality 90gsm envelopes designed for securely mailing A4 documents

and 600 metres long

C4 Plain Manilla Self Seal Envelopes 324 x 229mm 18" Single Wall Postal Mailing CardboardA4 size standard plain manilla self seal envelopes, measuring 324x229mm, are dependable 80gsm envelopes perfect for mailing A4 documents. These plain, window free envelopes offer a convenient self seal closure. For a more polished appearance and superior quality, explore our white range of envelopes.