Some have noticed that we now have several door hinge options available on our site. We now offer two different 3 1/2 Inch x 3 1/2 Inch hinges with 5/8 Inch round corners. Some are a bit more expensive than other and are sold in pairs while the others are not. The reason why? Our more expensive hinges are packaged in pairs with finish protectors inside the box and screws in an envelope to make sure they all stay intact. The less expensive hinges are pretty close to the same door hinge quality, but they are purchased in larger quantities and are packaged loosly. When you order the less expensive door hinges they will come all packed together in a box with all of the screws in a seperate box. Both door hinges are popular and are pretty much the standard residential hinge which we have tried to make available in the finishes that our Door Knobs and lever handles are available in. We also now carry 4 Inch door hinges with square or 5/8 Inch round corners - great for your exterior doors.