20 x pieces of Olfa ABB-10B, 9mm segmented snap off blades in a protective plastic tubes. These are the Excell Black ULTRA SHARP version of the Olfa 9mm segmented blade. To fit the Olfa 180 Black, 180-BT/36, S, S/20, A, A-2, A-3, SAC-1, SVR-1, SVR-2, PA-2, 300, NA-1, SPC-1/40, A-5, XA-1, ES-1/green and DA-1.These will also fit all other types of retractable snap off handles such as the Stanley 0-10-095 Interlock, Stanley FatMax. Razor sharp top quality blades, perfect for scrapbooking, card making, quilting, hobbies, graphic arts and crafts.