Size: 4-1/2" Opened WidthLeaf: 1-1/2" Wide X 6" TallSpring Height: 6-3/4"Material: SteelFinish: Prime CoatedQuantity: 2Use Of These Hinges Guarantee Door Will Return To Its Closed Position For Increased SecurityTamper-Resistant Spring Action To Suit New York City Housing Authority (NYCHA) RequirementsFull Mortise, Hinges Are Mortised Into Both The Jamb And DoorScrews Provided To Hang Wood Or Metal Door To A Metal Jamb