Innovative, contemporary two-part foam packaging system is easily expanded to conform to most any shape for packing and shipping. No equipment required to turn flat bag into product-conforming protector; just apply pressure to bag to activate chemical expansion and in seconds, bag molds itself into a custom-fit foam cushion. Convenient, Instapak Quick´┐Ż requires substantially less storage space than traditional packing systems. This pioneering foam-in-place product delivers more damage-free shipments to recipients and puts an end to messy, loose fill dilemmas. Length: 24 in; Width: 18 in; Thickness: N/A; Material(s): Polyurethane Foam.