The Bear Resistant Latch used on all of our products have been tested by the "Living with Wildlife Foundation at the Grizzly and Wolf Discovery Center in West Yellowstone, Montana"  The tests were conducted by Sam the Bear who weighs more than 1,050 lbs. Sam was brought to the Grizzly and Wolf Discovery Center in West Yellowstone, MT in the fall of 1996 where he has been conducting tests to see how bear proof these designs really are.  Our gravity latch, latches the door closed as soon as the door is let go.  Purchase your receptacle today and rest assured that you are doing your part.