12 1/2" x 12 1/2" x 1" White Corrugated Bookfolds. These one-piece bookfolds have scores at multiple depths to ensure the proper fit for your products. Simply place product in the center, fold in the sides at your desired depth and seal with tape. Attractive 200#-B/ECT-32 white corrugated construction makes a quality impression. Shipped flat and sold in bundle quantities. 50/Bundle.