Send bulky items with confidence in these high quality manilla gusset envelopes which provide a combination of good looks and strength. Exceptionally strong 130gsm ribbed manilla paper across the whole range. Subtle ribbed texture and distinctive sheen provides an attractive finish. 25mm 'block bottom' style gusset maximises available capacity. All feature Peel and Seal adhesive for an exceptionally strong seals. C4 324x229x25mm. Boxed 100. With window 25mm in, 213mm up.