The Rentokil Enclosed Rat Trap is a hygienic, reusable, poison-free trap. It can be used again and again, or simply disposed of, if preferred. The traps are ideal for use where children and pets are present as the powerful trap is contained within a large safe box, which is opened by a key (supplied). The trap is easy to use and bait. How to use: Follow the on pack instructions. Set traps carefully.Always read the label and product information before use. Where to use: This product can be used indoors or outdoors. Place trap on flat surface where rats have been seen, with entry hole nearest the wall.