Trubble Gum Non-Toxic Glue Trap for Rats and Mice from the house of PCI. It is a unique rat trap that looks like a book and opens like one. Once opened, you can find inside two special glue surfaces separated by spacers to stop them from sticking to each other. These surfaces are extremely sticky. Rats and Mice are creatures of habit - they tend to follow a fixed route along walls and corners. And they don't walk -they scamper.