These Lathem Weekly Time Cards are designed for Lathem Model 2121 and all standard side-print time clocks (sold separately). They feature a Day 1 - Day 7 (Monday - Sunday) format with four In/Out punches per day. These double-sided time cards with signature line come in a pack of 100. Ideal for use with heavy duty time clocks. Since 1919, Lathem' s singular focus has been to manufacture innovative, durable and affordable employee time and attendance systems.