Zip Lock Bags: The Closure Mechanism
The wonderful thing about zip lock bags is that they can be used more then one time, which makes those that have purchased them feel like they are getting their money’s worth as well being an environmentally friendly product. Any item that can be reused numerous times is considered environmentally friendly, particularly when the plastic that makes up the item, such as the thermoplastics that are the usual materials for plastics bags, are able to be melted down and remanufactured too. The part of the zip lock bag that allows it to be used more then once is the closing mechanism.