"Improved design with ball bearing, no more squeaking or getting stiff when you open or close the door.Flexible bearing, very quiet, built-in stainless steel ballHigh quality corrosion resistant stainless steel material.Size: 99x73mm(thickness);Package: 4x door hinges, 32x screws.Qrity 4X Door Hinges, Home Door Hinges Stainless Steel Ball Bearing Mute Hinges with ScrewsStainless steel material can be used for a long service life.Fitment for house door or window, cabinet, toolbox, etc.Butt hinge is normally used for doors.Specification:< p>Improved design with ball bearing.No more squeaking or stiffness when you open or close the door.Size: 99x73mm;Material in high quality corrosion resistant stainless steel.Soft bearing, very quiet.Integrated stainless steel ball."