This bait is based in tallow fat oil and cannot be washed away or dried up under any condition. The use of this bait, if only a small stick dipped into the jar and placed at the back of the trap, will always keep your trap in a ready condition. Price reduction for purchase of 4 paste bait units. Any 4 paste baits will qualify for the discount. Discount will be applied at WMS, not on your shopping cart.