Tomcat 1 oz. Mouse Attractant Gel. This safe, non-toxic gel is the first and only attractant developed specifically for mice. It improves the effectiveness of any mechanical trap, whether it is plastic, wood, or live catch. The ideal formula attracts both mice and rats. Pre-mixed and ready to use, a small dollop of gel placed on a mouse trap attracts curious mice into the trap. It comes in a 1 oz. no-drip squeeze bottle.