1000 TIME CARDS FOR THE PYRAMID 4000, 4000 pro, 5000 TIME CLOCK (44100-10M compatible) BAR CODE TIME CARDS FOR THE PYRAMID 4000, 4000 pro, 5000 TIME CLOCK MODELS 10 PACKS OF 100 CARDS, EACH PACK NUMBERED 1-100, 1000 TOTAL CARDS 44100-10M Compatible Replaces Rev I, Rev J, Rev K, Rev O