PROVOKE Rat Monitoring Gel is a food-based gel that has been specifically designed to meet the unique behavioral characteristics of rats. PROVOKE can be dispensed easily onto any rat trap via its convenient 8 oz./224g squeeze bottle. Apply it to the removable bait cup on TRAPPER T-REX Rat Snap Trap for outstanding results. Like its mouse counterpart, PROVOKE Rat Monitoring Gel is non-toxic and hypoallergenic; it can be used in sensitive areas where food products, such as peanut butter, are prohibited. It is also water soluble, so it won't stain clothing or carpet.