12 1/2 x 3 x 17 1/2" Korrvu® Retention Packaging. This Retention Packaging System holds product securely within its proprietary retention frame and revolutionary film membrane. Provides engineered protection for a wide range of applications. Elastomeric film safely entraps the product while providing excellent visibility and product display. The side flaps fold upward, loosening the film and forming an insertion pocket for product loading. The side flaps are then folded down to tighten the retention film and hold the product securely in place. The finished package is then easily inserted into the carton and is ready for shipment. Includes inner assembly and outer packaging. Fits into FedEx Large box. Ships and stores flat to save space.