Model SP55 Squirrel Pack Large - Is a squirrel removal system that consists of (1) E50 and (2) SPT55s. The repeaating traps have two trap doors, one at each end to capture rodents leaving and entering the den. Let the critters remove themselves with this system. Perfect for grey squirrels and similar rodent-sized animals. Extremely easy to use and very effective. Attach the excluder over the animals' den opening with the mounting wings, slide the repeating trap over the excluder and hook into place. As critters exit or enter, the excluder will direct them into the repeating trap. Model SP55 is constructed from 1/2" x 1" - 16 gauge galvanized steel mesh and weighs 6 lbs.