If using a bait/lure*, unscrew the bait well from the bottom of the trap and fill it with the bait/lure. Screw the well back into place in the trap.
Press down on the back of the trap to open the jaws until the catch engages. Place the trap perpendicular to a wall**, with open mouth facing the wall, in a covered location where mice are travelling.
Leave the trap in place and check regularly. When a mouse is caught lift the trap by the back and press the jaws open to drop the dead mouse into a bag and place in the bin for disposal.
*Traps can be set without bait or baited with peanut butter or chocolate.
**Rodents prefer to run along the base of walls, fences and other vertical surfaces.