Thank you for viewing from among many items. Saran Wrap Cores * Cores from Saran Wrap 30cm x 50m * Cores from Saran Wrap 20cm x 50cm etc., totaling over 50 cores. As shown in the image, the 30cm cores have two different thicknesses. If you wish, I can also include the cores from aluminum foil, as shown in the last image, as a bonus.