This Jiffy Bubble Bag Envelope is 120x210mm and features a peel and seal closure.This Bubble Bag, also referred to as a Jiffy Bag, is ideal for sending packages and delicate items in the post. The peel and seal closure makes it easy to use and more hygienic than standard gummed envelopes.This peel and seal Bubble Bag is ideal for anyone who needs an easy and convenient way to send delicate items in the post, from office workers and retailers to students and eBay sellers.