Steel body. Steel shackle. Steel key. 3″ high x 2 3/16″ wide x 9/16″ deep. Key length: 2 1/8″. Single bolt mechanism. This is a reproduction of the European 16-17 c Triangle Padlock. I like to call this lock the “two Penny” lock, as I believe that would have been the cost of the original. Designed by: Kevin P. Moreau.