50 time cards per pack. Card dimensions 3.375 inches wide, 7.3125 inches long Standard format for top load time recorders: 6 columns for in/out punches. Double sided with the full month printed (days 1-15 on front, 16-31 on back). Compatible with all pay periods. For use with all NON-CALCULATING, NON THERMAL, 6 COLUMN clock models. Replaces all generic 6 column top load time cards. Popular compatible clock models include Pyramid 2500, Pyramid 2650pro, uPunch HN1000, uPunch HN3000. Replaces popular form numbers including 42415 and UPTC1000 Proudly made in the USA These high-quality, USA made time cards work with virtually all non-calculating, top load time recorders (* see compatibility exceptions noted at the end). The 6 column, 2 sided, 31 day format is the standard for most inexpensive imported time clocks on the market. This includes models from popular brands such as Pyramid and uPunch, as well as generic brands such as FLEXZION, TERA, YESCOM, YIYIBYUS, ONEUTRALON , BANLICALI, SEANESZTI, NUOBESTY, VEVOR and many others. * compatibility exceptions: NOT for use with thermal print clocks, NOT for use with calculating clocks, NOT a replacement for cards with holes punched at the bottom