These steel ball bearing door hinges are suitable for interior doors in a 3 inch size. Available in Chrome Polished. Zoo Hardware 3 Inch Steel Door Hinges are self lubricating ball bearing hinges and have a smooth action. We recommend this hinge for most internal doors. Finish: Polished Chrome. Dimensions :L 76mm x W 50mm x D 2mm (3 Inch). Sold and Supplied in Pairs with matching screws.