Model 603SS is our Professional Series rigid trap with one trap door and easy release rear door for squirrels, muskrats and similar size animals. This trap measures 19L x 6W x 6H. It features a very strong wire frame with a tighter mesh pattern and extra reinforcing steel rods welded to the frame for even greater strength. Tighter mesh patterns not only give the trap additional strength, but also prevent critters from reaching into the trap and stealing bait, and reaching out of the trap and damaging lawns, roofs, decks, and other property. The easy release rear door allows for the easiest way to release trapped animals and to bait the trap. These traps have the same great design as our Original Series traps with stronger materials and more demanding specifications. SIZE - 19L x 6W x 6H