Flatten the cardboard tube so that it’s able to lay flat on a surface and not roll.
Place your bait at the end of your tube and put the roll on the edge of a high surface such as a countertop or table with the bait hanging over the edge.
Place the bucket underneath the edge of the baited tube and add the sunflower oil to the bottom of the bucket.
Once the mouse or rat runs along the tube, gravity will take over and it will end up in the bucket.
The oil will prevent the rodent from being able to climb out, so it won’t be able to escape and hide somewhere in your home.
Take the bucket outside and release it far away from your house to prevent the rodent from returning.