Hot Shot Internal Bag separates the urine from the pressurizing agent so there is no contamination. System allows the entire product to be dispensed. Sprays longer than traditional spray cans. Only 100-Percent Pure Lure is dispensed. Quieter spray won't spook Moose. Tink's Power Moose is designed to be used during the breeding season. It is most effective during the pre-rut and rut seasons when bulls are looking for hot cows which are ready to breed.