The CP 055.51 secure, white book wraps offer robust wrap-around protection for your A4 ring binder files & other larger items. The pre-creased grooves allow you to adjust the mailer for a snug & secure fit around standard 35mm files & up to 80mm to fit the larger lever-arch folders. These book wraps have reinforced edges & double peel & seal adhesive strips to offer enhanced protection during transit, & an easy open tear strip for a frustration free customer experience when your items arrive; perfect for all your pack & despatch needs.