The trap is a yellow plastic box with a hole in the front that the possum puts its head into to access the bait. Inside the box is a spring loaded bar that strikes the possum under the chin when it sets off the trap. This cuts off the possums wind-pipe so that the possum becomes unconcious and then dies from lack of oxygen. Setting the trap is easily achieved by pulling a string located at the back of the trap. The trap can be baited with a slice of apple or our Pestoff Possum Bait Suitable for orchard and lifestyle blocks Robust, simple and highly visible yellow plastic design Easily set by simply pulling cord at rear of trap Bait with a slice of apple Can be placed on ground, trees, roofs or almost anywhere (but be careful with domestic pets!)