The document discusses different types of clutches and brakes manufactured by Eide for use in automatic and semi-automatic packaging machines. It describes three types of clutch-brakes that regulate clutch performance and braking in a controlled manner for safety: pneumatic clutch-brakes without rotary air, electromagnetic clutch-brakes that offer a safe and rapid response, and electromagnetic clutch-brakes with a housing that allows for combinations of 17 versions and operate based on current draw.