Tomcat II Blox Trolley Sprayers Sprayers Contains HVL Technology providing Contains HVL Technology providing long lasting palatability and ongoing effectiveness It is compatible with the most of brands such as Bayer The main benefit of anticoagulants over other poisons is that the time taken for the poison to induce death means that the rats do not associate the damage with their feeding habits Firstly due to Tomcat being less toxic than Tomcat II this makes it safer for use around non target animals that could potentially consume the bait directly (primary poisoning) or consume rats and mice that have consumed the bait (secondary poisoning)