FASTRAC Soft Bait offers the palatability and acceptance of Bell's FASTRAC bromethalin rodenticide, now in a unique oil-based formulation with a precise balance between saturated and unsaturated fats. FASTRAC Soft Bait is also designed to withstand almost any climate. In cold climates, the bait won't freeze and when temperatures and humidity rise, FASTRAC Soft Bait is both mold and heat-resistant.