Heavy duty little snap-e traps made for the control of mice. Simply place the trap unset against a wall or structure in an area known to have an activity of mice. Apply a small dab of attractant to the reservoir in the middle of the trap. Once the activity has been confirmed place the traps in the same location but this time in ready position. To set the trap place them on a hard leveled surface and simply pull back the top bar it will hook on to the station.