Brand new pack of 4 Instapak Quick RT #10 Cushioning Foam by Parts Universe. Each foam pack measures 15" x 18" and is easy to use, offering superior protection for products of almost any size, shape, or weight. The foam expands in seconds, creating custom-fit protective cushions to eliminate shipping damage virtually. Its compact and mobile design makes it convenient to use anywhere. It is ideal for packing and shipping fragile or heavy items. Manufactured by SEALEDAIR.