Let the critters remove themselves with the SP40 Squirrel Pack System. Perfect for red squirrels, grey squirrels, and similar size animals. It is extremely simple to use and very effective. SP40 consists of one E40 excluder and two SPT40 repeating traps. The repeating traps have one trap door and and an easy release rear door. Attach E40 over the animals den opening with the mounting wings. Slide one of the SPT40 repeating traps over the E40 excluder and hook into place. As critters exit, the excluder will direct them into the repeating trap. To remove captured animals from the property, simply unhook the SPT40 repeating trap and replace it with the other included with this kit.