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White, opaque, C4 pocket, self-sealing envelopes with windows in a high-quality, smooth finish. Made using paper from sustainable forests, they’re an environmentally-friendly choice. These C4 pocket envelopes will hold A4 paper unfolded. Key features: White C4 Pocket Paper from sustainable forests Clear window Window Size: 40mm x 105mmWindow position: 215mm up – 24mm leftPaper Weight: 90gsm