The cash bag that provides a perfect balance of security and ease of use, SafeLOK™ is ideal for retail applications where quick training of new employees is important. Patented security features alert to attempted theft, while Press2Lok technology makes using the bag easy for your associates. Material(s): Plastic; Material Type: Plastic; Bag Closure Type: Fold-Top; Self-Adhesive; Bag Closure Details: Press to Close Glue Closure.