With our comprehensive range of office stationery, 5 Star™ has always been your watch word for ‘office essentials’. All of our traditional stationery and business machines fall under the 5 Star™ Office brand. Making it easy to find those everyday products every time! This PEFC™ certified envelope is Oversized for machine insertion. The window film is Biodegradable and its Trapeze style flaps aids insertion. These envelopes have a handy gummed closure for quick and easy fastening. They are wallet opening - meaning that they seal on their longer side.